--- _id: '1756' abstract: - lang: eng text: We report on the electronic transport properties of multiple-gate devices fabricated from undoped silicon nanowires. Understanding and control of the relevant transport mechanisms was achieved by means of local electrostatic gating and temperature-dependent measurements. The roles of the source/drain contacts and of the silicon channel could be independently evaluated and tuned. Wrap gates surrounding the silicide-silicon contact interfaces were proved to be effective in inducing a full suppression of the contact Schottky barriers, thereby enabling carrier injection down to liquid helium temperature. By independently tuning the effective Schottky barrier heights, a variety of reconfigurable device functionalities could be obtained. In particular, the same nanowire device could be configured to work as a Schottky barrier transistor, a Schottky diode, or a p-n diode with tunable polarities. This versatility was eventually exploited to realize a NAND logic gate with gain well above one. acknowledgement: This work was supported by the Agence Nationale de la Recherche (ANR) through the ACCESS and COHESION projects and by the European Commission through the Chemtronics program MEST-CT-2005-020513 author: - first_name: Massimo full_name: Mongillo, Massimo last_name: Mongillo - first_name: Panayotis full_name: Spathis, Panayotis N last_name: Spathis - first_name: Georgios full_name: Georgios Katsaros id: 38DB5788-F248-11E8-B48F-1D18A9856A87 last_name: Katsaros - first_name: Pascal full_name: Gentile, Pascal last_name: Gentile - first_name: Silvano full_name: De Franceschi, Silvano last_name: De Franceschi citation: ama: Mongillo M, Spathis P, Katsaros G, Gentile P, De Franceschi S. Multifunctional devices and logic gates with undoped silicon nanowires. Nano Letters. 2012;12(6):3074-3079. doi:10.1021/nl300930m apa: Mongillo, M., Spathis, P., Katsaros, G., Gentile, P., & De Franceschi, S. (2012). Multifunctional devices and logic gates with undoped silicon nanowires. Nano Letters. American Chemical Society. https://doi.org/10.1021/nl300930m chicago: Mongillo, Massimo, Panayotis Spathis, Georgios Katsaros, Pascal Gentile, and Silvano De Franceschi. “Multifunctional Devices and Logic Gates with Undoped Silicon Nanowires.” Nano Letters. American Chemical Society, 2012. https://doi.org/10.1021/nl300930m. ieee: M. Mongillo, P. Spathis, G. Katsaros, P. Gentile, and S. De Franceschi, “Multifunctional devices and logic gates with undoped silicon nanowires,” Nano Letters, vol. 12, no. 6. American Chemical Society, pp. 3074–3079, 2012. ista: Mongillo M, Spathis P, Katsaros G, Gentile P, De Franceschi S. 2012. Multifunctional devices and logic gates with undoped silicon nanowires. Nano Letters. 12(6), 3074–3079. mla: Mongillo, Massimo, et al. “Multifunctional Devices and Logic Gates with Undoped Silicon Nanowires.” Nano Letters, vol. 12, no. 6, American Chemical Society, 2012, pp. 3074–79, doi:10.1021/nl300930m. short: M. Mongillo, P. Spathis, G. Katsaros, P. Gentile, S. De Franceschi, Nano Letters 12 (2012) 3074–3079. date_created: 2018-12-11T11:53:50Z date_published: 2012-06-13T00:00:00Z date_updated: 2021-01-12T06:53:00Z day: '13' doi: 10.1021/nl300930m extern: 1 intvolume: ' 12' issue: '6' main_file_link: - open_access: '1' url: http://arxiv.org/abs/1208.1465 month: '06' oa: 1 page: 3074 - 3079 publication: Nano Letters publication_status: published publisher: American Chemical Society publist_id: '5368' quality_controlled: 0 status: public title: Multifunctional devices and logic gates with undoped silicon nanowires type: journal_article volume: 12 year: '2012' ... --- _id: '1783' abstract: - lang: eng text: Nonlinearity and entanglement are two important properties by which physical systems can be identified as nonclassical. We study the dynamics of the resonant interaction of up to N=3 two-level systems and a single mode of the electromagnetic field sharing a single excitation dynamically. We observe coherent vacuum Rabi oscillations and their nonlinear √N speedup by tracking the populations of all qubits and the resonator in time. We use quantum state tomography to show explicitly that the dynamics generates maximally entangled states of the W class in a time limited only by the collective interaction rate. We use an entanglement witness and the 3-tangle to characterize the state whose fidelity F=78% is limited in our experiments by crosstalk arising during the simultaneous qubit manipulations which is absent in a sequential approach with F=91%. acknowledgement: This work was supported by the Swiss National Science Foundation (SNF) and the EU IP SOLID author: - first_name: Jonas full_name: Mlynek, Jonas A last_name: Mlynek - first_name: Abdufarrukh full_name: Abdumalikov, Abdufarrukh A last_name: Abdumalikov - first_name: Johannes M full_name: Johannes Fink id: 4B591CBA-F248-11E8-B48F-1D18A9856A87 last_name: Fink orcid: 0000-0001-8112-028X - first_name: L. full_name: Steffen, L. Kraig last_name: Steffen - first_name: Matthias full_name: Baur, Matthias P last_name: Baur - first_name: C full_name: Lang, C last_name: Lang - first_name: Arjan full_name: Van Loo, Arjan F last_name: Van Loo - first_name: Andreas full_name: Wallraff, Andreas last_name: Wallraff citation: ama: Mlynek J, Abdumalikov A, Fink JM, et al. Demonstrating W-type entanglement of Dicke states in resonant cavity quantum electrodynamics. Physical Review A - Atomic, Molecular, and Optical Physics. 2012;86(5). doi:10.1103/PhysRevA.86.053838 apa: Mlynek, J., Abdumalikov, A., Fink, J. M., Steffen, L., Baur, M., Lang, C., … Wallraff, A. (2012). Demonstrating W-type entanglement of Dicke states in resonant cavity quantum electrodynamics. Physical Review A - Atomic, Molecular, and Optical Physics. American Physical Society. https://doi.org/10.1103/PhysRevA.86.053838 chicago: Mlynek, Jonas, Abdufarrukh Abdumalikov, Johannes M Fink, L. Steffen, Matthias Baur, C Lang, Arjan Van Loo, and Andreas Wallraff. “Demonstrating W-Type Entanglement of Dicke States in Resonant Cavity Quantum Electrodynamics.” Physical Review A - Atomic, Molecular, and Optical Physics. American Physical Society, 2012. https://doi.org/10.1103/PhysRevA.86.053838. ieee: J. Mlynek et al., “Demonstrating W-type entanglement of Dicke states in resonant cavity quantum electrodynamics,” Physical Review A - Atomic, Molecular, and Optical Physics, vol. 86, no. 5. American Physical Society, 2012. ista: Mlynek J, Abdumalikov A, Fink JM, Steffen L, Baur M, Lang C, Van Loo A, Wallraff A. 2012. Demonstrating W-type entanglement of Dicke states in resonant cavity quantum electrodynamics. Physical Review A - Atomic, Molecular, and Optical Physics. 86(5). mla: Mlynek, Jonas, et al. “Demonstrating W-Type Entanglement of Dicke States in Resonant Cavity Quantum Electrodynamics.” Physical Review A - Atomic, Molecular, and Optical Physics, vol. 86, no. 5, American Physical Society, 2012, doi:10.1103/PhysRevA.86.053838. short: J. Mlynek, A. Abdumalikov, J.M. Fink, L. Steffen, M. Baur, C. Lang, A. Van Loo, A. Wallraff, Physical Review A - Atomic, Molecular, and Optical Physics 86 (2012). date_created: 2018-12-11T11:53:59Z date_published: 2012-11-30T00:00:00Z date_updated: 2021-01-12T06:53:10Z day: '30' doi: 10.1103/PhysRevA.86.053838 extern: 1 intvolume: ' 86' issue: '5' main_file_link: - open_access: '1' url: http://arxiv.org/abs/1202.5191 month: '11' oa: 1 publication: Physical Review A - Atomic, Molecular, and Optical Physics publication_status: published publisher: American Physical Society publist_id: '5332' quality_controlled: 0 status: public title: Demonstrating W-type entanglement of Dicke states in resonant cavity quantum electrodynamics type: journal_article volume: 86 year: '2012' ... --- _id: '1782' abstract: - lang: eng text: Steering a quantum harmonic oscillator state along cyclic trajectories leads to a path-dependent geometric phase. Here we describe its experimental observation in an electronic harmonic oscillator. We use a superconducting qubit as a nonlinear probe of the phase, which is otherwise unobservable due to the linearity of the oscillator. We show that the geometric phase is, for a variety of cyclic paths, proportional to the area enclosed in the quadrature plane. At the transition to the nonadiabatic regime, we study corrections to the phase and dephasing of the qubit caused by qubit-resonator entanglement. In particular, we identify parameters for which this dephasing mechanism is negligible even in the nonadiabatic regime. The demonstrated controllability makes our system a versatile tool to study geometric phases in open quantum systems and to investigate their potential for quantum information processing. acknowledgement: This work is supported by the EU project GEOMDISS, the Austrian Science Foundation (S. F.), and the Swiss National Science Foundation (SNSF) author: - first_name: M full_name: Pechal, M last_name: Pechal - first_name: Stefan full_name: Berger, Stefan T last_name: Berger - first_name: Abdufarrukh full_name: Abdumalikov, Abdufarrukh A last_name: Abdumalikov - first_name: Johannes M full_name: Johannes Fink id: 4B591CBA-F248-11E8-B48F-1D18A9856A87 last_name: Fink orcid: 0000-0001-8112-028X - first_name: Jonas full_name: Mlynek, Jonas A last_name: Mlynek - first_name: L. full_name: Steffen, L. Kraig last_name: Steffen - first_name: Andreas full_name: Wallraff, Andreas last_name: Wallraff - first_name: Stefan full_name: Filipp, Stefan last_name: Filipp citation: ama: Pechal M, Berger S, Abdumalikov A, et al. Geometric phase and nonadiabatic effects in an electronic harmonic oscillator. Physical Review Letters. 2012;108(17). doi:10.1103/PhysRevLett.108.170401 apa: Pechal, M., Berger, S., Abdumalikov, A., Fink, J. M., Mlynek, J., Steffen, L., … Filipp, S. (2012). Geometric phase and nonadiabatic effects in an electronic harmonic oscillator. Physical Review Letters. American Physical Society. https://doi.org/10.1103/PhysRevLett.108.170401 chicago: Pechal, M, Stefan Berger, Abdufarrukh Abdumalikov, Johannes M Fink, Jonas Mlynek, L. Steffen, Andreas Wallraff, and Stefan Filipp. “Geometric Phase and Nonadiabatic Effects in an Electronic Harmonic Oscillator.” Physical Review Letters. American Physical Society, 2012. https://doi.org/10.1103/PhysRevLett.108.170401. ieee: M. Pechal et al., “Geometric phase and nonadiabatic effects in an electronic harmonic oscillator,” Physical Review Letters, vol. 108, no. 17. American Physical Society, 2012. ista: Pechal M, Berger S, Abdumalikov A, Fink JM, Mlynek J, Steffen L, Wallraff A, Filipp S. 2012. Geometric phase and nonadiabatic effects in an electronic harmonic oscillator. Physical Review Letters. 108(17). mla: Pechal, M., et al. “Geometric Phase and Nonadiabatic Effects in an Electronic Harmonic Oscillator.” Physical Review Letters, vol. 108, no. 17, American Physical Society, 2012, doi:10.1103/PhysRevLett.108.170401. short: M. Pechal, S. Berger, A. Abdumalikov, J.M. Fink, J. Mlynek, L. Steffen, A. Wallraff, S. Filipp, Physical Review Letters 108 (2012). date_created: 2018-12-11T11:53:59Z date_published: 2012-04-23T00:00:00Z date_updated: 2021-01-12T06:53:10Z day: '23' doi: 10.1103/PhysRevLett.108.170401 extern: 1 intvolume: ' 108' issue: '17' main_file_link: - open_access: '1' url: http://arxiv.org/abs/1109.1157 month: '04' oa: 1 publication: Physical Review Letters publication_status: published publisher: American Physical Society publist_id: '5333' quality_controlled: 0 status: public title: Geometric phase and nonadiabatic effects in an electronic harmonic oscillator type: journal_article volume: 108 year: '2012' ... --- _id: '1784' abstract: - lang: eng text: A localized qubit entangled with a propagating quantum field is well suited to study nonlocal aspects of quantum mechanics and may also provide a channel to communicate between spatially separated nodes in a quantum network. Here, we report the on-demand generation and characterization of Bell-type entangled states between a superconducting qubit and propagating microwave fields composed of zero-, one-, and two-photon Fock states. Using low noise linear amplification and efficient data acquisition we extract all relevant correlations between the qubit and the photon states and demonstrate entanglement with high fidelity. acknowledgement: This work was supported by the European Research Council (ERC) through a Starting Grant and by ETHZ author: - first_name: Christopher full_name: Eichler, Christopher last_name: Eichler - first_name: C full_name: Lang, C last_name: Lang - first_name: Johannes M full_name: Johannes Fink id: 4B591CBA-F248-11E8-B48F-1D18A9856A87 last_name: Fink orcid: 0000-0001-8112-028X - first_name: J full_name: Govenius, J last_name: Govenius - first_name: Stefan full_name: Filipp, Stefan last_name: Filipp - first_name: Andreas full_name: Wallraff, Andreas last_name: Wallraff citation: ama: Eichler C, Lang C, Fink JM, Govenius J, Filipp S, Wallraff A. Observation of entanglement between itinerant microwave photons and a superconducting qubit. Physical Review Letters. 2012;109(24). doi:10.1103/PhysRevLett.109.240501 apa: Eichler, C., Lang, C., Fink, J. M., Govenius, J., Filipp, S., & Wallraff, A. (2012). Observation of entanglement between itinerant microwave photons and a superconducting qubit. Physical Review Letters. American Physical Society. https://doi.org/10.1103/PhysRevLett.109.240501 chicago: Eichler, Christopher, C Lang, Johannes M Fink, J Govenius, Stefan Filipp, and Andreas Wallraff. “Observation of Entanglement between Itinerant Microwave Photons and a Superconducting Qubit.” Physical Review Letters. American Physical Society, 2012. https://doi.org/10.1103/PhysRevLett.109.240501. ieee: C. Eichler, C. Lang, J. M. Fink, J. Govenius, S. Filipp, and A. Wallraff, “Observation of entanglement between itinerant microwave photons and a superconducting qubit,” Physical Review Letters, vol. 109, no. 24. American Physical Society, 2012. ista: Eichler C, Lang C, Fink JM, Govenius J, Filipp S, Wallraff A. 2012. Observation of entanglement between itinerant microwave photons and a superconducting qubit. Physical Review Letters. 109(24). mla: Eichler, Christopher, et al. “Observation of Entanglement between Itinerant Microwave Photons and a Superconducting Qubit.” Physical Review Letters, vol. 109, no. 24, American Physical Society, 2012, doi:10.1103/PhysRevLett.109.240501. short: C. Eichler, C. Lang, J.M. Fink, J. Govenius, S. Filipp, A. Wallraff, Physical Review Letters 109 (2012). date_created: 2018-12-11T11:53:59Z date_published: 2012-12-10T00:00:00Z date_updated: 2021-01-12T06:53:10Z day: '10' doi: 10.1103/PhysRevLett.109.240501 extern: 1 intvolume: ' 109' issue: '24' main_file_link: - open_access: '0' url: http://arxiv.org/abs/1209.0441 month: '12' publication: Physical Review Letters publication_status: published publisher: American Physical Society publist_id: '5330' quality_controlled: 0 status: public title: Observation of entanglement between itinerant microwave photons and a superconducting qubit type: journal_article volume: 109 year: '2012' ... --- _id: '1801' abstract: - lang: eng text: Brain circuits are assembled from a large variety of morphologically and functionally diverse cell types. It is not known how the intermingled cell types of an individual adult brain region differ in their expressed genomes. Here we describe an atlas of cell type transcriptomes in one brain region, the mouse retina. We found that each adult cell type expressed a specific set of genes, including a unique set of transcription factors, forming a 'barcode' for cell identity. Cell type transcriptomes carried enough information to categorize cells into morphological classes and types. Several genes that were specifically expressed in particular retinal circuit elements, such as inhibitory neuron types, are associated with eye diseases. The resource described here allows gene expression to be compared across adult retinal cell types, experimenting with specific transcription factors to differentiate stem or somatic cells to retinal cell types, and predicting cellular targets of newly discovered disease-associated genes. acknowledgement: The study was supported by Friedrich Miescher Institute funds, Alcon award, a National Center of Competence in Research Genetics grant, a European Research Council grant, a Swiss-Hungarian grant, and RETICIRC, TREATRUSH, SEEBETTER and OPTONEURO grants from the European Union to B.R. author: - first_name: Sandra full_name: Sandra Siegert id: 36ACD32E-F248-11E8-B48F-1D18A9856A87 last_name: Siegert orcid: 0000-0001-8635-0877 - first_name: Erik full_name: Cabuy, Erik last_name: Cabuy - first_name: Brigitte full_name: Scherf, Brigitte G last_name: Scherf - first_name: Hubertus full_name: Kohler, Hubertus last_name: Kohler - first_name: Satchidananda full_name: Panda, Satchidananda last_name: Panda - first_name: Yunzheng full_name: Le, Yunzheng last_name: Le - first_name: Hans full_name: Fehling, Hans J last_name: Fehling - first_name: Dimos full_name: Gaidatzis, Dimos last_name: Gaidatzis - first_name: Michael full_name: Stadler, Michael B last_name: Stadler - first_name: Botond full_name: Roska, Botond M last_name: Roska citation: ama: Siegert S, Cabuy E, Scherf B, et al. Transcriptional code and disease map for adult retinal cell types. Nature Neuroscience. 2012;15(3):487-495. doi:10.1038/nn.3032 apa: Siegert, S., Cabuy, E., Scherf, B., Kohler, H., Panda, S., Le, Y., … Roska, B. (2012). Transcriptional code and disease map for adult retinal cell types. Nature Neuroscience. Nature Publishing Group. https://doi.org/10.1038/nn.3032 chicago: Siegert, Sandra, Erik Cabuy, Brigitte Scherf, Hubertus Kohler, Satchidananda Panda, Yunzheng Le, Hans Fehling, Dimos Gaidatzis, Michael Stadler, and Botond Roska. “Transcriptional Code and Disease Map for Adult Retinal Cell Types.” Nature Neuroscience. Nature Publishing Group, 2012. https://doi.org/10.1038/nn.3032. ieee: S. Siegert et al., “Transcriptional code and disease map for adult retinal cell types,” Nature Neuroscience, vol. 15, no. 3. Nature Publishing Group, pp. 487–495, 2012. ista: Siegert S, Cabuy E, Scherf B, Kohler H, Panda S, Le Y, Fehling H, Gaidatzis D, Stadler M, Roska B. 2012. Transcriptional code and disease map for adult retinal cell types. Nature Neuroscience. 15(3), 487–495. mla: Siegert, Sandra, et al. “Transcriptional Code and Disease Map for Adult Retinal Cell Types.” Nature Neuroscience, vol. 15, no. 3, Nature Publishing Group, 2012, pp. 487–95, doi:10.1038/nn.3032. short: S. Siegert, E. Cabuy, B. Scherf, H. Kohler, S. Panda, Y. Le, H. Fehling, D. Gaidatzis, M. Stadler, B. Roska, Nature Neuroscience 15 (2012) 487–495. date_created: 2018-12-11T11:54:05Z date_published: 2012-03-01T00:00:00Z date_updated: 2021-01-12T06:53:17Z day: '01' doi: 10.1038/nn.3032 extern: 1 intvolume: ' 15' issue: '3' month: '03' page: 487 - 495 publication: Nature Neuroscience publication_status: published publisher: Nature Publishing Group publist_id: '5309' quality_controlled: 0 status: public title: Transcriptional code and disease map for adult retinal cell types type: journal_article volume: 15 year: '2012' ... --- _id: '1976' abstract: - lang: eng text: 'Complex I is a key enzyme of the respiratory chain in many organisms. This multi-protein complex with an intricate evolutionary history originated from the unification of prebuilt modules of hydrogenases and transporters. Using recently determined crystallographic structures of complex I we reanalyzed evolutionarily related complexes that couple oxidoreduction to trans-membrane ion translocation. Our analysis points to the previously unnoticed structural homology of the electron input module of formate dehydrogenlyases and subunit NuoG of complex I. We also show that all related to complex I hydrogenases likely operate via a conformation driven mechanism with structural changes generated in the conserved coupling site located at the interface of subunits NuoB/D/H. The coupling apparently originated once in evolutionary history, together with subunit NuoH joining hydrogenase and transport modules. Analysis of quinone oxidoreduction properties and the structure of complex I allows us to suggest a fully reversible coupling mechanism. Our model predicts that: 1) proton access to the ketone groups of the bound quinone is rigorously controlled by the protein, 2) the negative electric charge of the anionic ubiquinol head group is a major driving force for conformational changes.' acknowledgement: The work in authors' laboratory was funded by the Medical Research Council. author: - first_name: Rouslan full_name: Efremov, Rouslan G last_name: Efremov - first_name: Leonid A full_name: Leonid Sazanov id: 338D39FE-F248-11E8-B48F-1D18A9856A87 last_name: Sazanov orcid: 0000-0002-0977-7989 citation: ama: Efremov R, Sazanov LA. The coupling mechanism of respiratory complex i - A structural and evolutionary perspective. Biochimica et Biophysica Acta - Bioenergetics. 2012;1817(10):1785-1795. doi:10.1016/j.bbabio.2012.02.015 apa: Efremov, R., & Sazanov, L. A. (2012). The coupling mechanism of respiratory complex i - A structural and evolutionary perspective. Biochimica et Biophysica Acta - Bioenergetics. Elsevier. https://doi.org/10.1016/j.bbabio.2012.02.015 chicago: Efremov, Rouslan, and Leonid A Sazanov. “The Coupling Mechanism of Respiratory Complex i - A Structural and Evolutionary Perspective.” Biochimica et Biophysica Acta - Bioenergetics. Elsevier, 2012. https://doi.org/10.1016/j.bbabio.2012.02.015. ieee: R. Efremov and L. A. Sazanov, “The coupling mechanism of respiratory complex i - A structural and evolutionary perspective,” Biochimica et Biophysica Acta - Bioenergetics, vol. 1817, no. 10. Elsevier, pp. 1785–1795, 2012. ista: Efremov R, Sazanov LA. 2012. The coupling mechanism of respiratory complex i - A structural and evolutionary perspective. Biochimica et Biophysica Acta - Bioenergetics. 1817(10), 1785–1795. mla: Efremov, Rouslan, and Leonid A. Sazanov. “The Coupling Mechanism of Respiratory Complex i - A Structural and Evolutionary Perspective.” Biochimica et Biophysica Acta - Bioenergetics, vol. 1817, no. 10, Elsevier, 2012, pp. 1785–95, doi:10.1016/j.bbabio.2012.02.015. short: R. Efremov, L.A. Sazanov, Biochimica et Biophysica Acta - Bioenergetics 1817 (2012) 1785–1795. date_created: 2018-12-11T11:55:00Z date_published: 2012-10-01T00:00:00Z date_updated: 2019-04-26T07:22:06Z day: '01' doi: 10.1016/j.bbabio.2012.02.015 extern: 1 intvolume: ' 1817' issue: '10' month: '10' page: 1785 - 1795 publication: Biochimica et Biophysica Acta - Bioenergetics publication_status: published publisher: Elsevier publist_id: '5108' quality_controlled: 0 status: public title: The coupling mechanism of respiratory complex i - A structural and evolutionary perspective type: review volume: 1817 year: '2012' ... --- _id: '1972' abstract: - lang: eng text: Outer membrane protein F, a major component of the Escherichia coli outer membrane, was crystallized for the first time in lipidic mesophase of monoolein in novel space groups, P1 and H32. Due to ease of its purification and crystallization OmpF can be used as a benchmark protein for establishing membrane protein crystallization in meso, as a "membrane lyzozyme" The packing of porin trimers in the crystals of space group H32 is similar to natural outer membranes, providing the first high-resolution insight into the close to native packing of OmpF. Surprisingly, interaction between trimers is mediated exclusively by lipids, without direct protein-protein contacts. Multiple ordered lipids are observed and many of them occupy identical positions independently of the space group, identifying preferential interaction sites of lipid acyl chains. Presence of ordered aliphatic chains close to a positively charged area on the porin surface suggests a position for a lipopolysaccharide binding site on the surface of the major E. coli porins. acknowledgement: This work was funded by the Medical Research Council. author: - first_name: Rouslan full_name: Efremov, Rouslan G last_name: Efremov - first_name: Leonid A full_name: Leonid Sazanov id: 338D39FE-F248-11E8-B48F-1D18A9856A87 last_name: Sazanov orcid: 0000-0002-0977-7989 citation: ama: Efremov R, Sazanov LA. Structure of Escherichia coli OmpF porin from lipidic mesophase. Journal of Structural Biology. 2012;178(3):311-318. doi:10.1016/j.jsb.2012.03.005 apa: Efremov, R., & Sazanov, L. A. (2012). Structure of Escherichia coli OmpF porin from lipidic mesophase. Journal of Structural Biology. Academic Press. https://doi.org/10.1016/j.jsb.2012.03.005 chicago: Efremov, Rouslan, and Leonid A Sazanov. “Structure of Escherichia Coli OmpF Porin from Lipidic Mesophase.” Journal of Structural Biology. Academic Press, 2012. https://doi.org/10.1016/j.jsb.2012.03.005. ieee: R. Efremov and L. A. Sazanov, “Structure of Escherichia coli OmpF porin from lipidic mesophase,” Journal of Structural Biology, vol. 178, no. 3. Academic Press, pp. 311–318, 2012. ista: Efremov R, Sazanov LA. 2012. Structure of Escherichia coli OmpF porin from lipidic mesophase. Journal of Structural Biology. 178(3), 311–318. mla: Efremov, Rouslan, and Leonid A. Sazanov. “Structure of Escherichia Coli OmpF Porin from Lipidic Mesophase.” Journal of Structural Biology, vol. 178, no. 3, Academic Press, 2012, pp. 311–18, doi:10.1016/j.jsb.2012.03.005. short: R. Efremov, L.A. Sazanov, Journal of Structural Biology 178 (2012) 311–318. date_created: 2018-12-11T11:54:59Z date_published: 2012-06-01T00:00:00Z date_updated: 2021-01-12T06:54:26Z day: '01' doi: 10.1016/j.jsb.2012.03.005 extern: 1 intvolume: ' 178' issue: '3' month: '06' page: 311 - 318 publication: Journal of Structural Biology publication_status: published publisher: Academic Press publist_id: '5109' quality_controlled: 0 status: public title: Structure of Escherichia coli OmpF porin from lipidic mesophase type: journal_article volume: 178 year: '2012' ... --- _id: '1987' abstract: - lang: eng text: | In the living cell, proteins are able to organize space much larger than their dimensions. In return, changes of intracellular space can influence biochemical reactions, allowing cells to sense their size and shape. Despite the possibility to reconstitute protein self-organization with only a few purified components, we still lack knowledge of how geometrical boundaries affect spatiotemporal protein patterns. Following a minimal systems approach, we used purified proteins and photolithographically patterned membranes to study the influence of spatial confinement on the self-organization of the Min system, a spatial regulator of bacterial cytokinesis, in vitro. We found that the emerging protein pattern responds even to the lateral, two-dimensional geometry of the membrane such that, as in the three-dimensional cell, Min protein waves travel along the longest axis of the membrane patch. This shows that for spatial sensing the Min system does not need to be enclosed in a three-dimensional compartment. Using a computational model we quantitatively analyzed our experimental findings and identified persistent binding of MinE to the membrane as requirement for the Min system to sense geometry. Our results give insight into the interplay between geometrical confinement and biochemical patterns emerging from a nonlinear reaction-diffusion system. acknowledgement: 'This work was supported by the Max-Planck-Society (P.S. and M.L.) and by the German Research Foundation as part of the Research Training Group “Nano- and Biotechnologies for Electronic Device Packaging” (GRK 1401) (J.S.) and by the Leibniz-Award (P.S.). ' author: - first_name: Jakob full_name: Schweizer, Jakob last_name: Schweizer - first_name: Martin full_name: Martin Loose id: 462D4284-F248-11E8-B48F-1D18A9856A87 last_name: Loose orcid: 0000-0001-7309-9724 - first_name: Mike full_name: 'Bonny, Mike ' last_name: Bonny - first_name: Karsten full_name: Kruse, Karsten last_name: Kruse - first_name: Ingolf full_name: Mönch, Ingolf last_name: Mönch - first_name: Petra full_name: 'Schwille, Petra ' last_name: Schwille citation: ama: Schweizer J, Loose M, Bonny M, Kruse K, Mönch I, Schwille P. Geometry sensing by self-organized protein patterns. PNAS. 2012;109(38):15283-15288. doi:10.1073/pnas.1206953109 apa: Schweizer, J., Loose, M., Bonny, M., Kruse, K., Mönch, I., & Schwille, P. (2012). Geometry sensing by self-organized protein patterns. PNAS. National Academy of Sciences. https://doi.org/10.1073/pnas.1206953109 chicago: Schweizer, Jakob, Martin Loose, Mike Bonny, Karsten Kruse, Ingolf Mönch, and Petra Schwille. “Geometry Sensing by Self-Organized Protein Patterns.” PNAS. National Academy of Sciences, 2012. https://doi.org/10.1073/pnas.1206953109. ieee: J. Schweizer, M. Loose, M. Bonny, K. Kruse, I. Mönch, and P. Schwille, “Geometry sensing by self-organized protein patterns,” PNAS, vol. 109, no. 38. National Academy of Sciences, pp. 15283–15288, 2012. ista: Schweizer J, Loose M, Bonny M, Kruse K, Mönch I, Schwille P. 2012. Geometry sensing by self-organized protein patterns. PNAS. 109(38), 15283–15288. mla: Schweizer, Jakob, et al. “Geometry Sensing by Self-Organized Protein Patterns.” PNAS, vol. 109, no. 38, National Academy of Sciences, 2012, pp. 15283–88, doi:10.1073/pnas.1206953109. short: J. Schweizer, M. Loose, M. Bonny, K. Kruse, I. Mönch, P. Schwille, PNAS 109 (2012) 15283–15288. date_created: 2018-12-11T11:55:04Z date_published: 2012-09-18T00:00:00Z date_updated: 2021-01-12T06:54:31Z day: '18' doi: 10.1073/pnas.1206953109 extern: 1 intvolume: ' 109' issue: '38' month: '09' page: 15283 - 15288 publication: PNAS publication_status: published publisher: National Academy of Sciences publist_id: '5096' quality_controlled: 0 status: public title: Geometry sensing by self-organized protein patterns type: journal_article volume: 109 year: '2012' ... --- _id: '2048' abstract: - lang: eng text: Leakage resilient cryptography attempts to incorporate side-channel leakage into the black-box security model and designs cryptographic schemes that are provably secure within it. Informally, a scheme is leakage-resilient if it remains secure even if an adversary learns a bounded amount of arbitrary information about the schemes internal state. Unfortunately, most leakage resilient schemes are unnecessarily complicated in order to achieve strong provable security guarantees. As advocated by Yu et al. [CCS’10], this mostly is an artefact of the security proof and in practice much simpler construction may already suffice to protect against realistic side-channel attacks. In this paper, we show that indeed for simpler constructions leakage-resilience can be obtained when we aim for relaxed security notions where the leakage-functions and/or the inputs to the primitive are chosen non-adaptively. For example, we show that a three round Feistel network instantiated with a leakage resilient PRF yields a leakage resilient PRP if the inputs are chosen non-adaptively (This complements the result of Dodis and Pietrzak [CRYPTO’10] who show that if a adaptive queries are allowed, a superlogarithmic number of rounds is necessary.) We also show that a minor variation of the classical GGM construction gives a leakage resilient PRF if both, the leakage-function and the inputs, are chosen non-adaptively. acknowledgement: "Sebastian Faust acknowledges support from the Danish National Research Foundation and The National Science Foundation of China (under the grant 61061130540) for the Sino-Danish Center for the Theory of Interactive Computation, within part of this work was performed; and from the CFEM research center, supported by the Danish Strategic Research Council. \r\nSupported by the European Research Council/ERC Starting Grant 259668-PSPC.\r\n" alternative_title: - LNCS author: - first_name: Sebastian full_name: Faust, Sebastian last_name: Faust - first_name: Krzysztof Z full_name: Pietrzak, Krzysztof Z id: 3E04A7AA-F248-11E8-B48F-1D18A9856A87 last_name: Pietrzak orcid: 0000-0002-9139-1654 - first_name: Joachim full_name: Schipper, Joachim id: 7BE863D4-E9CF-11E9-9EDB-90527418172C last_name: Schipper citation: ama: 'Faust S, Pietrzak KZ, Schipper J. Practical leakage-resilient symmetric cryptography. In: Conference Proceedings CHES 2012. Vol 7428. Springer; 2012:213-232. doi:10.1007/978-3-642-33027-8_13' apa: 'Faust, S., Pietrzak, K. Z., & Schipper, J. (2012). Practical leakage-resilient symmetric cryptography. In Conference proceedings CHES 2012 (Vol. 7428, pp. 213–232). Leuven, Belgium: Springer. https://doi.org/10.1007/978-3-642-33027-8_13' chicago: Faust, Sebastian, Krzysztof Z Pietrzak, and Joachim Schipper. “Practical Leakage-Resilient Symmetric Cryptography.” In Conference Proceedings CHES 2012, 7428:213–32. Springer, 2012. https://doi.org/10.1007/978-3-642-33027-8_13. ieee: S. Faust, K. Z. Pietrzak, and J. Schipper, “Practical leakage-resilient symmetric cryptography,” in Conference proceedings CHES 2012, Leuven, Belgium, 2012, vol. 7428, pp. 213–232. ista: 'Faust S, Pietrzak KZ, Schipper J. 2012. Practical leakage-resilient symmetric cryptography. Conference proceedings CHES 2012. CHES: Cryptographic Hardware and Embedded Systems, LNCS, vol. 7428, 213–232.' mla: Faust, Sebastian, et al. “Practical Leakage-Resilient Symmetric Cryptography.” Conference Proceedings CHES 2012, vol. 7428, Springer, 2012, pp. 213–32, doi:10.1007/978-3-642-33027-8_13. short: S. Faust, K.Z. Pietrzak, J. Schipper, in:, Conference Proceedings CHES 2012, Springer, 2012, pp. 213–232. conference: end_date: 2012-09-12 location: Leuven, Belgium name: 'CHES: Cryptographic Hardware and Embedded Systems' start_date: 2012-09-09 date_created: 2018-12-11T11:55:25Z date_published: 2012-09-01T00:00:00Z date_updated: 2021-01-12T06:54:58Z day: '01' department: - _id: KrPi doi: 10.1007/978-3-642-33027-8_13 ec_funded: 1 intvolume: ' 7428' language: - iso: eng main_file_link: - open_access: '1' url: http://www.iacr.org/archive/ches2012/74280211/74280211.pdf month: '09' oa: 1 oa_version: Preprint page: 213 - 232 project: - _id: 258C570E-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '259668' name: Provable Security for Physical Cryptography publication: ' Conference proceedings CHES 2012' publication_status: published publisher: Springer publist_id: '5003' quality_controlled: '1' scopus_import: 1 status: public title: Practical leakage-resilient symmetric cryptography type: conference user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 7428 year: '2012' ... --- _id: '2049' abstract: - lang: eng text: "We propose a new authentication protocol that is provably secure based on a ring variant of the learning parity with noise (LPN) problem. The protocol follows the design principle of the LPN-based protocol from Eurocrypt’11 (Kiltz et al.), and like it, is a two round protocol secure against active attacks. Moreover, our protocol has small communication complexity and a very small footprint which makes it applicable in scenarios that involve low-cost, resource-constrained devices.\r\n\r\nPerformance-wise, our protocol is more efficient than previous LPN-based schemes, such as the many variants of the Hopper-Blum (HB) protocol and the aforementioned protocol from Eurocrypt’11. Our implementation results show that it is even comparable to the standard challenge-and-response protocols based on the AES block-cipher. Our basic protocol is roughly 20 times slower than AES, but with the advantage of having 10 times smaller code size. Furthermore, if a few hundred bytes of non-volatile memory are available to allow the storage of some off-line pre-computations, then the online phase of our protocols is only twice as slow as AES.\r\n" acknowledgement: "Supported by the European Research Council / ERC Starting Grant (259668- PSPC)\r\nWe would like to thank the anonymous referees of this confer- ence and those of the ECRYPT Workshop on Lightweight Cryptography for very useful comments, and in particular for the suggestion that the scheme is somewhat vulnerable to a man-in-the-middle attack whenever an adversary observes two reader challenges that are the same. We hope that the attack we described in Appendix A corresponds to what the reviewer had in mind. We also thank Tanja Lange for pointing us to the pa- per of [Kir11] and for discussions of some of her recent work. " alternative_title: - LNCS author: - first_name: Stefan full_name: Heyse, Stefan last_name: Heyse - first_name: Eike full_name: Kiltz, Eike last_name: Kiltz - first_name: Vadim full_name: Lyubashevsky, Vadim last_name: Lyubashevsky - first_name: Christof full_name: Paar, Christof last_name: Paar - first_name: Krzysztof Z full_name: Pietrzak, Krzysztof Z id: 3E04A7AA-F248-11E8-B48F-1D18A9856A87 last_name: Pietrzak orcid: 0000-0002-9139-1654 citation: ama: 'Heyse S, Kiltz E, Lyubashevsky V, Paar C, Pietrzak KZ. Lapin: An efficient authentication protocol based on ring-LPN. In: Conference Proceedings FSE 2012. Vol 7549. Springer; 2012:346-365. doi:10.1007/978-3-642-34047-5_20' apa: 'Heyse, S., Kiltz, E., Lyubashevsky, V., Paar, C., & Pietrzak, K. Z. (2012). Lapin: An efficient authentication protocol based on ring-LPN. In Conference proceedings FSE 2012 (Vol. 7549, pp. 346–365). Washington, DC, USA: Springer. https://doi.org/10.1007/978-3-642-34047-5_20' chicago: 'Heyse, Stefan, Eike Kiltz, Vadim Lyubashevsky, Christof Paar, and Krzysztof Z Pietrzak. “Lapin: An Efficient Authentication Protocol Based on Ring-LPN.” In Conference Proceedings FSE 2012, 7549:346–65. Springer, 2012. https://doi.org/10.1007/978-3-642-34047-5_20.' ieee: 'S. Heyse, E. Kiltz, V. Lyubashevsky, C. Paar, and K. Z. Pietrzak, “Lapin: An efficient authentication protocol based on ring-LPN,” in Conference proceedings FSE 2012, Washington, DC, USA, 2012, vol. 7549, pp. 346–365.' ista: 'Heyse S, Kiltz E, Lyubashevsky V, Paar C, Pietrzak KZ. 2012. Lapin: An efficient authentication protocol based on ring-LPN. Conference proceedings FSE 2012. FSE: Fast Software Encryption, LNCS, vol. 7549, 346–365.' mla: 'Heyse, Stefan, et al. “Lapin: An Efficient Authentication Protocol Based on Ring-LPN.” Conference Proceedings FSE 2012, vol. 7549, Springer, 2012, pp. 346–65, doi:10.1007/978-3-642-34047-5_20.' short: S. Heyse, E. Kiltz, V. Lyubashevsky, C. Paar, K.Z. Pietrzak, in:, Conference Proceedings FSE 2012, Springer, 2012, pp. 346–365. conference: end_date: 2012-03-21 location: Washington, DC, USA name: 'FSE: Fast Software Encryption' start_date: 2012-03-19 date_created: 2018-12-11T11:55:25Z date_published: 2012-03-01T00:00:00Z date_updated: 2021-01-12T06:54:58Z day: '01' department: - _id: KrPi doi: 10.1007/978-3-642-34047-5_20 ec_funded: 1 intvolume: ' 7549' language: - iso: eng main_file_link: - open_access: '1' url: http://www.iacr.org/archive/fse2012/75490350/75490350.pdf month: '03' oa: 1 oa_version: Preprint page: 346 - 365 project: - _id: 258C570E-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '259668' name: Provable Security for Physical Cryptography publication: ' Conference proceedings FSE 2012' publication_status: published publisher: Springer publist_id: '5002' quality_controlled: '1' scopus_import: 1 status: public title: 'Lapin: An efficient authentication protocol based on ring-LPN' type: conference user_id: 3E5EF7F0-F248-11E8-B48F-1D18A9856A87 volume: 7549 year: '2012' ...