[{"date_updated":"2023-09-19T14:29:03Z","department":[{"_id":"MiLe"},{"_id":"RoSe"}],"_id":"5983","type":"journal_article","status":"public","publication_status":"published","publication_identifier":{"eissn":["2469-9969"],"issn":["2469-9950"]},"language":[{"iso":"eng"}],"ec_funded":1,"issue":"22","volume":98,"abstract":[{"lang":"eng","text":"We study a quantum impurity possessing both translational and internal rotational degrees of freedom interacting with a bosonic bath. Such a system corresponds to a “rotating polaron,” which can be used to model, e.g., a rotating molecule immersed in an ultracold Bose gas or superfluid helium. We derive the Hamiltonian of the rotating polaron and study its spectrum in the weak- and strong-coupling regimes using a combination of variational, diagrammatic, and mean-field approaches. We reveal how the coupling between linear and angular momenta affects stable quasiparticle states, and demonstrate that internal rotation leads to an enhanced self-localization in the translational degrees of freedom."}],"oa_version":"Preprint","main_file_link":[{"url":"https://arxiv.org/abs/1809.01204","open_access":"1"}],"scopus_import":"1","intvolume":" 98","month":"12","citation":{"chicago":"Yakaboylu, Enderalp, Bikashkali Midya, Andreas Deuchert, Nikolai K Leopold, and Mikhail Lemeshko. “Theory of the Rotating Polaron: Spectrum and Self-Localization.” Physical Review B. American Physical Society, 2018. https://doi.org/10.1103/physrevb.98.224506.","ista":"Yakaboylu E, Midya B, Deuchert A, Leopold NK, Lemeshko M. 2018. Theory of the rotating polaron: Spectrum and self-localization. Physical Review B. 98(22), 224506.","mla":"Yakaboylu, Enderalp, et al. “Theory of the Rotating Polaron: Spectrum and Self-Localization.” Physical Review B, vol. 98, no. 22, 224506, American Physical Society, 2018, doi:10.1103/physrevb.98.224506.","short":"E. Yakaboylu, B. Midya, A. Deuchert, N.K. Leopold, M. Lemeshko, Physical Review B 98 (2018).","ieee":"E. Yakaboylu, B. Midya, A. Deuchert, N. K. Leopold, and M. Lemeshko, “Theory of the rotating polaron: Spectrum and self-localization,” Physical Review B, vol. 98, no. 22. American Physical Society, 2018.","apa":"Yakaboylu, E., Midya, B., Deuchert, A., Leopold, N. K., & Lemeshko, M. (2018). Theory of the rotating polaron: Spectrum and self-localization. Physical Review B. American Physical Society. https://doi.org/10.1103/physrevb.98.224506","ama":"Yakaboylu E, Midya B, Deuchert A, Leopold NK, Lemeshko M. Theory of the rotating polaron: Spectrum and self-localization. Physical Review B. 2018;98(22). doi:10.1103/physrevb.98.224506"},"user_id":"c635000d-4b10-11ee-a964-aac5a93f6ac1","external_id":{"isi":["000452992700008"],"arxiv":["1809.01204"]},"article_processing_charge":"No","author":[{"last_name":"Yakaboylu","orcid":"0000-0001-5973-0874","full_name":"Yakaboylu, Enderalp","first_name":"Enderalp","id":"38CB71F6-F248-11E8-B48F-1D18A9856A87"},{"first_name":"Bikashkali","id":"456187FC-F248-11E8-B48F-1D18A9856A87","last_name":"Midya","full_name":"Midya, Bikashkali"},{"last_name":"Deuchert","full_name":"Deuchert, Andreas","orcid":"0000-0003-3146-6746","first_name":"Andreas","id":"4DA65CD0-F248-11E8-B48F-1D18A9856A87"},{"id":"4BC40BEC-F248-11E8-B48F-1D18A9856A87","first_name":"Nikolai K","orcid":"0000-0002-0495-6822","full_name":"Leopold, Nikolai K","last_name":"Leopold"},{"id":"37CB05FA-F248-11E8-B48F-1D18A9856A87","first_name":"Mikhail","last_name":"Lemeshko","full_name":"Lemeshko, Mikhail","orcid":"0000-0002-6990-7802"}],"title":"Theory of the rotating polaron: Spectrum and self-localization","article_number":"224506","project":[{"_id":"25681D80-B435-11E9-9278-68D0E5697425","call_identifier":"FP7","name":"International IST Postdoc Fellowship Programme","grant_number":"291734"},{"grant_number":"694227","name":"Analysis of quantum many-body systems","call_identifier":"H2020","_id":"25C6DC12-B435-11E9-9278-68D0E5697425"}],"year":"2018","isi":1,"publication":"Physical Review B","day":"12","date_created":"2019-02-14T10:37:09Z","doi":"10.1103/physrevb.98.224506","date_published":"2018-12-12T00:00:00Z","oa":1,"quality_controlled":"1","publisher":"American Physical Society"},{"status":"public","article_type":"original","type":"journal_article","_id":"5982","department":[{"_id":"MaIb"}],"date_updated":"2023-09-19T14:28:31Z","month":"12","intvolume":" 57","scopus_import":"1","main_file_link":[{"open_access":"1","url":"https://upcommons.upc.edu/bitstream/2117/130444/1/Zhang%20preprint.pdf"}],"oa_version":"Submitted Version","abstract":[{"text":"In the present work, we detail a fast and simple solution-based method to synthesize hexagonal SnSe2 nanoplates (NPLs) and their use to produce crystallographically textured SnSe2 nanomaterials. We also demonstrate that the same strategy can be used to produce orthorhombic SnSe nanostructures and nanomaterials. NPLs are grown through a screw dislocation-driven mechanism. This mechanism typically results in pyramidal structures, but we demonstrate here that the growth from multiple dislocations results in flower-like structures. Crystallographically textured SnSe2 bulk nanomaterials obtained from the hot pressing of these SnSe2 structures display highly anisotropic charge and heat transport properties and thermoelectric (TE) figures of merit limited by relatively low electrical conductivities. To improve this parameter, SnSe2 NPLs are blended here with metal nanoparticles. The electrical conductivities of the blends are significantly improved with respect to bare SnSe2 NPLs, what translates into a three-fold increase of the TE Figure of merit, reaching unprecedented ZT values up to 0.65.","lang":"eng"}],"issue":"52","volume":57,"language":[{"iso":"eng"}],"publication_identifier":{"issn":["1433-7851"]},"publication_status":"published","title":"Tin diselenide molecular precursor for solution-processable thermoelectric materials","author":[{"last_name":"Zhang","full_name":"Zhang, Yu","first_name":"Yu"},{"first_name":"Yu","last_name":"Liu","full_name":"Liu, Yu"},{"last_name":"Lim","full_name":"Lim, Khak Ho","first_name":"Khak Ho"},{"first_name":"Congcong","full_name":"Xing, Congcong","last_name":"Xing"},{"first_name":"Mengyao","full_name":"Li, Mengyao","last_name":"Li"},{"first_name":"Ting","full_name":"Zhang, Ting","last_name":"Zhang"},{"first_name":"Pengyi","full_name":"Tang, Pengyi","last_name":"Tang"},{"full_name":"Arbiol, Jordi","last_name":"Arbiol","first_name":"Jordi"},{"first_name":"Jordi","full_name":"Llorca, Jordi","last_name":"Llorca"},{"first_name":"Ka Ming","last_name":"Ng","full_name":"Ng, Ka Ming"},{"last_name":"Ibáñez","orcid":"0000-0001-5013-2843","full_name":"Ibáñez, Maria","id":"43C61214-F248-11E8-B48F-1D18A9856A87","first_name":"Maria"},{"first_name":"Pablo","last_name":"Guardia","full_name":"Guardia, Pablo"},{"last_name":"Prato","full_name":"Prato, Mirko","first_name":"Mirko"},{"full_name":"Cadavid, Doris","last_name":"Cadavid","first_name":"Doris"},{"last_name":"Cabot","full_name":"Cabot, Andreu","first_name":"Andreu"}],"article_processing_charge":"No","external_id":{"isi":["000454575500020"]},"user_id":"c635000d-4b10-11ee-a964-aac5a93f6ac1","citation":{"ista":"Zhang Y, Liu Y, Lim KH, Xing C, Li M, Zhang T, Tang P, Arbiol J, Llorca J, Ng KM, Ibáñez M, Guardia P, Prato M, Cadavid D, Cabot A. 2018. Tin diselenide molecular precursor for solution-processable thermoelectric materials. Angewandte Chemie International Edition. 57(52), 17063–17068.","chicago":"Zhang, Yu, Yu Liu, Khak Ho Lim, Congcong Xing, Mengyao Li, Ting Zhang, Pengyi Tang, et al. “Tin Diselenide Molecular Precursor for Solution-Processable Thermoelectric Materials.” Angewandte Chemie International Edition. Wiley, 2018. https://doi.org/10.1002/anie.201809847.","ama":"Zhang Y, Liu Y, Lim KH, et al. Tin diselenide molecular precursor for solution-processable thermoelectric materials. Angewandte Chemie International Edition. 2018;57(52):17063-17068. doi:10.1002/anie.201809847","apa":"Zhang, Y., Liu, Y., Lim, K. H., Xing, C., Li, M., Zhang, T., … Cabot, A. (2018). Tin diselenide molecular precursor for solution-processable thermoelectric materials. Angewandte Chemie International Edition. Wiley. https://doi.org/10.1002/anie.201809847","short":"Y. Zhang, Y. Liu, K.H. Lim, C. Xing, M. Li, T. Zhang, P. Tang, J. Arbiol, J. Llorca, K.M. Ng, M. Ibáñez, P. Guardia, M. Prato, D. Cadavid, A. Cabot, Angewandte Chemie International Edition 57 (2018) 17063–17068.","ieee":"Y. Zhang et al., “Tin diselenide molecular precursor for solution-processable thermoelectric materials,” Angewandte Chemie International Edition, vol. 57, no. 52. Wiley, pp. 17063–17068, 2018.","mla":"Zhang, Yu, et al. “Tin Diselenide Molecular Precursor for Solution-Processable Thermoelectric Materials.” Angewandte Chemie International Edition, vol. 57, no. 52, Wiley, 2018, pp. 17063–68, doi:10.1002/anie.201809847."},"quality_controlled":"1","publisher":"Wiley","oa":1,"date_published":"2018-12-21T00:00:00Z","doi":"10.1002/anie.201809847","date_created":"2019-02-14T10:23:27Z","page":"17063-17068","day":"21","publication":"Angewandte Chemie International Edition","isi":1,"year":"2018"},{"author":[{"first_name":"Stefan","full_name":"Haller, Stefan","last_name":"Haller"},{"first_name":"Paul","id":"446560C6-F248-11E8-B48F-1D18A9856A87","last_name":"Swoboda","full_name":"Swoboda, Paul"},{"first_name":"Bogdan","last_name":"Savchynskyy","full_name":"Savchynskyy, Bogdan"}],"external_id":{"arxiv":["2004.06370"],"isi":["000485488906082"]},"article_processing_charge":"No","title":"Exact MAP-inference by confining combinatorial search with LP relaxation","department":[{"_id":"VlKo"}],"citation":{"chicago":"Haller, Stefan, Paul Swoboda, and Bogdan Savchynskyy. “Exact MAP-Inference by Confining Combinatorial Search with LP Relaxation.” In Proceedings of the 32st AAAI Conference on Artificial Intelligence, 6581–88. AAAI Press, 2018.","ista":"Haller S, Swoboda P, Savchynskyy B. 2018. Exact MAP-inference by confining combinatorial search with LP relaxation. Proceedings of the 32st AAAI Conference on Artificial Intelligence. AAAI: Conference on Artificial Intelligence, 6581–6588.","mla":"Haller, Stefan, et al. “Exact MAP-Inference by Confining Combinatorial Search with LP Relaxation.” Proceedings of the 32st AAAI Conference on Artificial Intelligence, AAAI Press, 2018, pp. 6581–88.","ama":"Haller S, Swoboda P, Savchynskyy B. Exact MAP-inference by confining combinatorial search with LP relaxation. In: Proceedings of the 32st AAAI Conference on Artificial Intelligence. AAAI Press; 2018:6581-6588.","apa":"Haller, S., Swoboda, P., & Savchynskyy, B. (2018). Exact MAP-inference by confining combinatorial search with LP relaxation. In Proceedings of the 32st AAAI Conference on Artificial Intelligence (pp. 6581–6588). New Orleans, LU, United States: AAAI Press.","short":"S. Haller, P. Swoboda, B. Savchynskyy, in:, Proceedings of the 32st AAAI Conference on Artificial Intelligence, AAAI Press, 2018, pp. 6581–6588.","ieee":"S. Haller, P. Swoboda, and B. Savchynskyy, “Exact MAP-inference by confining combinatorial search with LP relaxation,” in Proceedings of the 32st AAAI Conference on Artificial Intelligence, New Orleans, LU, United States, 2018, pp. 6581–6588."},"date_updated":"2023-09-19T14:26:52Z","user_id":"c635000d-4b10-11ee-a964-aac5a93f6ac1","type":"conference","conference":{"end_date":"2018-02-07","location":"New Orleans, LU, United States","start_date":"2018-02-02","name":"AAAI: Conference on Artificial Intelligence"},"status":"public","_id":"5978","page":"6581-6588","date_published":"2018-02-01T00:00:00Z","date_created":"2019-02-13T13:32:48Z","isi":1,"year":"2018","publication_status":"published","day":"01","publication":"Proceedings of the 32st AAAI Conference on Artificial Intelligence","language":[{"iso":"eng"}],"quality_controlled":"1","publisher":"AAAI Press","scopus_import":"1","main_file_link":[{"url":"https://arxiv.org/abs/2004.06370","open_access":"1"}],"oa":1,"month":"02","abstract":[{"lang":"eng","text":"We consider the MAP-inference problem for graphical models,which is a valued constraint satisfaction problem defined onreal numbers with a natural summation operation. We proposea family of relaxations (different from the famous Sherali-Adams hierarchy), which naturally define lower bounds for itsoptimum. This family always contains a tight relaxation andwe give an algorithm able to find it and therefore, solve theinitial non-relaxed NP-hard problem.The relaxations we consider decompose the original probleminto two non-overlapping parts: an easy LP-tight part and adifficult one. For the latter part a combinatorial solver must beused. As we show in our experiments, in a number of applica-tions the second, difficult part constitutes only a small fractionof the whole problem. This property allows to significantlyreduce the computational time of the combinatorial solver andtherefore solve problems which were out of reach before."}],"oa_version":"Preprint"},{"_id":"5990","status":"public","type":"journal_article","date_updated":"2023-09-19T14:29:58Z","department":[{"_id":"GeKa"}],"oa_version":"Preprint","abstract":[{"lang":"eng","text":"A Ge–Si core–shell nanowire is used to realize a Josephson field‐effect transistor with highly transparent contacts to superconducting leads. By changing the electric field, access to two distinct regimes, not combined before in a single device, is gained: in the accumulation mode the device is highly transparent and the supercurrent is carried by multiple subbands, while near depletion, the supercurrent is carried by single‐particle levels of a strongly coupled quantum dot operating in the few‐hole regime. These results establish Ge–Si nanowires as an important platform for hybrid superconductor–semiconductor physics and Majorana fermions."}],"intvolume":" 30","month":"11","main_file_link":[{"url":"https://arxiv.org/abs/1809.08487","open_access":"1"}],"scopus_import":"1","language":[{"iso":"eng"}],"publication_status":"published","publication_identifier":{"issn":["0935-9648"]},"issue":"44","volume":30,"article_number":"1802257","user_id":"c635000d-4b10-11ee-a964-aac5a93f6ac1","citation":{"mla":"Ridderbos, Joost, et al. “Josephson Effect in a Few-Hole Quantum Dot.” Advanced Materials, vol. 30, no. 44, 1802257, Wiley, 2018, doi:10.1002/adma.201802257.","short":"J. Ridderbos, M. Brauns, J. Shen, F.K. de Vries, A. Li, E.P.A.M. Bakkers, A. Brinkman, F.A. Zwanenburg, Advanced Materials 30 (2018).","ieee":"J. Ridderbos et al., “Josephson effect in a few-hole quantum dot,” Advanced Materials, vol. 30, no. 44. Wiley, 2018.","apa":"Ridderbos, J., Brauns, M., Shen, J., de Vries, F. K., Li, A., Bakkers, E. P. A. M., … Zwanenburg, F. A. (2018). Josephson effect in a few-hole quantum dot. Advanced Materials. Wiley. https://doi.org/10.1002/adma.201802257","ama":"Ridderbos J, Brauns M, Shen J, et al. Josephson effect in a few-hole quantum dot. Advanced Materials. 2018;30(44). doi:10.1002/adma.201802257","chicago":"Ridderbos, Joost, Matthias Brauns, Jie Shen, Folkert K. de Vries, Ang Li, Erik P. A. M. Bakkers, Alexander Brinkman, and Floris A. Zwanenburg. “Josephson Effect in a Few-Hole Quantum Dot.” Advanced Materials. Wiley, 2018. https://doi.org/10.1002/adma.201802257.","ista":"Ridderbos J, Brauns M, Shen J, de Vries FK, Li A, Bakkers EPAM, Brinkman A, Zwanenburg FA. 2018. Josephson effect in a few-hole quantum dot. Advanced Materials. 30(44), 1802257."},"title":"Josephson effect in a few-hole quantum dot","article_processing_charge":"No","external_id":{"arxiv":["1809.08487"],"isi":["000450232800015"]},"author":[{"first_name":"Joost","last_name":"Ridderbos","full_name":"Ridderbos, Joost"},{"id":"33F94E3C-F248-11E8-B48F-1D18A9856A87","first_name":"Matthias","full_name":"Brauns, Matthias","last_name":"Brauns"},{"first_name":"Jie","full_name":"Shen, Jie","last_name":"Shen"},{"full_name":"de Vries, Folkert K.","last_name":"de Vries","first_name":"Folkert K."},{"first_name":"Ang","last_name":"Li","full_name":"Li, Ang"},{"first_name":"Erik P. A. M.","full_name":"Bakkers, Erik P. A. M.","last_name":"Bakkers"},{"first_name":"Alexander","last_name":"Brinkman","full_name":"Brinkman, Alexander"},{"first_name":"Floris A.","last_name":"Zwanenburg","full_name":"Zwanenburg, Floris A."}],"oa":1,"publisher":"Wiley","quality_controlled":"1","publication":"Advanced Materials","day":"02","year":"2018","isi":1,"date_created":"2019-02-14T12:14:26Z","doi":"10.1002/adma.201802257","date_published":"2018-11-02T00:00:00Z"},{"department":[{"_id":"KrPi"}],"title":"Private set-intersection with common set-up","external_id":{"isi":["000430950400002"]},"article_processing_charge":"No","author":[{"first_name":"Sanjit","last_name":"Chatterjee","full_name":"Chatterjee, Sanjit"},{"full_name":"Kamath Hosdurg, Chethan","last_name":"Kamath Hosdurg","first_name":"Chethan","id":"4BD3F30E-F248-11E8-B48F-1D18A9856A87"},{"first_name":"Vikas","last_name":"Kumar","full_name":"Kumar, Vikas"}],"user_id":"c635000d-4b10-11ee-a964-aac5a93f6ac1","date_updated":"2023-09-19T14:27:59Z","citation":{"mla":"Chatterjee, Sanjit, et al. “Private Set-Intersection with Common Set-Up.” American Institute of Mathematical Sciences, vol. 12, no. 1, AIMS, 2018, pp. 17–47, doi:10.3934/amc.2018002.","short":"S. Chatterjee, C. Kamath Hosdurg, V. Kumar, American Institute of Mathematical Sciences 12 (2018) 17–47.","ieee":"S. Chatterjee, C. Kamath Hosdurg, and V. Kumar, “Private set-intersection with common set-up,” American Institute of Mathematical Sciences, vol. 12, no. 1. AIMS, pp. 17–47, 2018.","ama":"Chatterjee S, Kamath Hosdurg C, Kumar V. Private set-intersection with common set-up. American Institute of Mathematical Sciences. 2018;12(1):17-47. doi:10.3934/amc.2018002","apa":"Chatterjee, S., Kamath Hosdurg, C., & Kumar, V. (2018). Private set-intersection with common set-up. American Institute of Mathematical Sciences. AIMS. https://doi.org/10.3934/amc.2018002","chicago":"Chatterjee, Sanjit, Chethan Kamath Hosdurg, and Vikas Kumar. “Private Set-Intersection with Common Set-Up.” American Institute of Mathematical Sciences. AIMS, 2018. https://doi.org/10.3934/amc.2018002.","ista":"Chatterjee S, Kamath Hosdurg C, Kumar V. 2018. Private set-intersection with common set-up. American Institute of Mathematical Sciences. 12(1), 17–47."},"status":"public","type":"journal_article","_id":"5980","date_created":"2019-02-13T13:49:41Z","issue":"1","volume":12,"doi":"10.3934/amc.2018002","date_published":"2018-02-01T00:00:00Z","page":"17-47","publication":"American Institute of Mathematical Sciences","language":[{"iso":"eng"}],"day":"01","publication_status":"published","year":"2018","isi":1,"intvolume":" 12","month":"02","scopus_import":"1","publisher":"AIMS","quality_controlled":"1","oa_version":"None","abstract":[{"text":"The problem of private set-intersection (PSI) has been traditionally treated as an instance of the more general problem of multi-party computation (MPC). Consequently, in order to argue security, or compose these protocols one has to rely on the general theory that was developed for the purpose of MPC. The pursuit of efficient protocols, however, has resulted in designs that exploit properties pertaining to PSI. In almost all practical applications where a PSI protocol is deployed, it is expected to be executed multiple times, possibly on related inputs. In this work we initiate a dedicated study of PSI in the multi-interaction (MI) setting. In this model a server sets up the common system parameters and executes set-intersection multiple times with potentially different clients. We discuss a few attacks that arise when protocols are naïvely composed in this manner and, accordingly, craft security definitions for the MI setting and study their inter-relation. Finally, we suggest a set of protocols that are MI-secure, at the same time almost as efficient as their parent, stand-alone, protocols.","lang":"eng"}]}]