[{"article_number":"243201","project":[{"name":"Angulon: physics and applications of a new quasiparticle","grant_number":"801770","call_identifier":"H2020","_id":"2688CF98-B435-11E9-9278-68D0E5697425"},{"_id":"2564DBCA-B435-11E9-9278-68D0E5697425","call_identifier":"H2020","name":"International IST Doctoral Program","grant_number":"665385"}],"user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","citation":{"ista":"Qiang J, Zhou L, Lu P, Lin K, Ma Y, Pan S, Lu C, Jiang W, Sun F, Zhang W, Li H, Gong X, Averbukh IS, Prior Y, Schouder CA, Stapelfeldt H, Cherepanov I, Lemeshko M, Jäger W, Wu J. 2022. Femtosecond rotational dynamics of D2 molecules in superfluid helium nanodroplets. Physical Review Letters. 128(24), 243201.","chicago":"Qiang, Junjie, Lianrong Zhou, Peifen Lu, Kang Lin, Yongzhe Ma, Shengzhe Pan, Chenxu Lu, et al. “Femtosecond Rotational Dynamics of D2 Molecules in Superfluid Helium Nanodroplets.” Physical Review Letters. American Physical Society, 2022. https://doi.org/10.1103/PhysRevLett.128.243201.","ama":"Qiang J, Zhou L, Lu P, et al. Femtosecond rotational dynamics of D2 molecules in superfluid helium nanodroplets. Physical Review Letters. 2022;128(24). doi:10.1103/PhysRevLett.128.243201","apa":"Qiang, J., Zhou, L., Lu, P., Lin, K., Ma, Y., Pan, S., … Wu, J. (2022). Femtosecond rotational dynamics of D2 molecules in superfluid helium nanodroplets. Physical Review Letters. American Physical Society. https://doi.org/10.1103/PhysRevLett.128.243201","short":"J. Qiang, L. Zhou, P. Lu, K. Lin, Y. Ma, S. Pan, C. Lu, W. Jiang, F. Sun, W. Zhang, H. Li, X. Gong, I.S. Averbukh, Y. Prior, C.A. Schouder, H. Stapelfeldt, I. Cherepanov, M. Lemeshko, W. Jäger, J. Wu, Physical Review Letters 128 (2022).","ieee":"J. Qiang et al., “Femtosecond rotational dynamics of D2 molecules in superfluid helium nanodroplets,” Physical Review Letters, vol. 128, no. 24. American Physical Society, 2022.","mla":"Qiang, Junjie, et al. “Femtosecond Rotational Dynamics of D2 Molecules in Superfluid Helium Nanodroplets.” Physical Review Letters, vol. 128, no. 24, 243201, American Physical Society, 2022, doi:10.1103/PhysRevLett.128.243201."},"title":"Femtosecond rotational dynamics of D2 molecules in superfluid helium nanodroplets","author":[{"first_name":"Junjie","last_name":"Qiang","full_name":"Qiang, Junjie"},{"first_name":"Lianrong","full_name":"Zhou, Lianrong","last_name":"Zhou"},{"first_name":"Peifen","last_name":"Lu","full_name":"Lu, Peifen"},{"first_name":"Kang","full_name":"Lin, Kang","last_name":"Lin"},{"first_name":"Yongzhe","full_name":"Ma, Yongzhe","last_name":"Ma"},{"first_name":"Shengzhe","last_name":"Pan","full_name":"Pan, Shengzhe"},{"full_name":"Lu, Chenxu","last_name":"Lu","first_name":"Chenxu"},{"last_name":"Jiang","full_name":"Jiang, Wenyu","first_name":"Wenyu"},{"full_name":"Sun, Fenghao","last_name":"Sun","first_name":"Fenghao"},{"first_name":"Wenbin","full_name":"Zhang, Wenbin","last_name":"Zhang"},{"first_name":"Hui","full_name":"Li, Hui","last_name":"Li"},{"full_name":"Gong, Xiaochun","last_name":"Gong","first_name":"Xiaochun"},{"first_name":"Ilya Sh","last_name":"Averbukh","full_name":"Averbukh, Ilya Sh"},{"first_name":"Yehiam","full_name":"Prior, Yehiam","last_name":"Prior"},{"first_name":"Constant A.","last_name":"Schouder","full_name":"Schouder, Constant A."},{"first_name":"Henrik","full_name":"Stapelfeldt, Henrik","last_name":"Stapelfeldt"},{"first_name":"Igor","id":"339C7E5A-F248-11E8-B48F-1D18A9856A87","last_name":"Cherepanov","full_name":"Cherepanov, Igor"},{"first_name":"Mikhail","id":"37CB05FA-F248-11E8-B48F-1D18A9856A87","last_name":"Lemeshko","full_name":"Lemeshko, Mikhail","orcid":"0000-0002-6990-7802"},{"first_name":"Wolfgang","full_name":"Jäger, Wolfgang","last_name":"Jäger"},{"first_name":"Jian","full_name":"Wu, Jian","last_name":"Wu"}],"article_processing_charge":"No","external_id":{"arxiv":["2201.09281"],"isi":["000820659700002"]},"publisher":"American Physical Society","quality_controlled":"1","oa":1,"day":"16","publication":"Physical Review Letters","isi":1,"year":"2022","doi":"10.1103/PhysRevLett.128.243201","date_published":"2022-06-16T00:00:00Z","date_created":"2022-07-10T22:01:52Z","_id":"11552","status":"public","type":"journal_article","date_updated":"2023-08-03T11:54:14Z","department":[{"_id":"MiLe"}],"oa_version":"Submitted Version","abstract":[{"text":"Rotational dynamics of D2 molecules inside helium nanodroplets is induced by a moderately intense femtosecond pump pulse and measured as a function of time by recording the yield of HeD+ ions, created through strong-field dissociative ionization with a delayed femtosecond probe pulse. The yield oscillates with a period of 185 fs, reflecting field-free rotational wave packet dynamics, and the oscillation persists for more than 500 periods. Within the experimental uncertainty, the rotational constant BHe of the in-droplet D2 molecule, determined by Fourier analysis, is the same as Bgas for an isolated D2 molecule. Our observations show that the D2 molecules inside helium nanodroplets essentially rotate as free D2 molecules.","lang":"eng"}],"month":"06","intvolume":" 128","scopus_import":"1","main_file_link":[{"open_access":"1","url":"https://doi.org/10.48550/arXiv.2201.09281"}],"language":[{"iso":"eng"}],"publication_identifier":{"issn":["00319007"],"eissn":["10797114"]},"publication_status":"published","issue":"24","volume":128,"ec_funded":1},{"file_date_updated":"2022-08-29T09:57:40Z","department":[{"_id":"MiLe"}],"date_updated":"2023-08-03T13:19:06Z","ddc":["530"],"article_type":"original","type":"journal_article","tmp":{"legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","image":"/images/cc_by.png","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","short":"CC BY (4.0)"},"status":"public","_id":"11998","issue":"7","volume":24,"license":"https://creativecommons.org/licenses/by/4.0/","ec_funded":1,"publication_identifier":{"issn":["1367-2630"]},"publication_status":"published","file":[{"file_name":"2022_NewJournalofPhysics_Cherepanov.pdf","date_created":"2022-08-29T09:57:40Z","file_size":1912882,"date_updated":"2022-08-29T09:57:40Z","creator":"alisjak","success":1,"checksum":"10116a08d3489befc13dba2cc44490f1","file_id":"12005","content_type":"application/pdf","relation":"main_file","access_level":"open_access"}],"language":[{"iso":"eng"}],"scopus_import":"1","month":"08","intvolume":" 24","abstract":[{"lang":"eng","text":"Recently it became possible to study highly excited rotational states of molecules in superfluid helium through nonadiabatic alignment experiments (Cherepanov et al 2021 Phys. Rev. A 104 L061303). This calls for theoretical approaches that go beyond explaining renormalized values of molecular spectroscopic constants, which suffices when only the lowest few rotational states are involved. As the first step in this direction, here we present a basic quantum mechanical model describing highly excited rotational states of molecules in superfluid helium nanodroplets. We show that a linear molecule immersed in a superfluid can be seen as an effective symmetric top, similar to the rotational structure of radicals, such as OH or NO, but with the angular momentum of the superfluid playing the role of the electronic angular momentum in free molecules. The simple theory sheds light onto what happens when the rotational angular momentum of the molecule increases beyond the lowest excited states accessible by infrared spectroscopy. In addition, the model allows to estimate the effective rotational and centrifugal distortion constants for a broad range of species and to explain the crossover between light and heavy molecules in superfluid 4He in terms of the many-body wavefunction structure. Some of the above mentioned insights can be acquired by analyzing a simple 2 × 2 matrix."}],"oa_version":"Published Version","author":[{"full_name":"Cherepanov, Igor","last_name":"Cherepanov","first_name":"Igor","id":"339C7E5A-F248-11E8-B48F-1D18A9856A87"},{"orcid":"0000-0001-8823-9777","full_name":"Bighin, Giacomo","last_name":"Bighin","id":"4CA96FD4-F248-11E8-B48F-1D18A9856A87","first_name":"Giacomo"},{"first_name":"Constant A.","full_name":"Schouder, Constant A.","last_name":"Schouder"},{"full_name":"Chatterley, Adam S.","last_name":"Chatterley","first_name":"Adam S."},{"first_name":"Henrik","full_name":"Stapelfeldt, Henrik","last_name":"Stapelfeldt"},{"first_name":"Mikhail","id":"37CB05FA-F248-11E8-B48F-1D18A9856A87","last_name":"Lemeshko","orcid":"0000-0002-6990-7802","full_name":"Lemeshko, Mikhail"}],"article_processing_charge":"Yes","external_id":{"isi":["000839216900001"]},"title":"A simple model for high rotational excitations of molecules in a superfluid","citation":{"ama":"Cherepanov I, Bighin G, Schouder CA, Chatterley AS, Stapelfeldt H, Lemeshko M. A simple model for high rotational excitations of molecules in a superfluid. New Journal of Physics. 2022;24(7). doi:10.1088/1367-2630/ac8113","apa":"Cherepanov, I., Bighin, G., Schouder, C. A., Chatterley, A. S., Stapelfeldt, H., & Lemeshko, M. (2022). A simple model for high rotational excitations of molecules in a superfluid. New Journal of Physics. IOP. https://doi.org/10.1088/1367-2630/ac8113","ieee":"I. Cherepanov, G. Bighin, C. A. Schouder, A. S. Chatterley, H. Stapelfeldt, and M. Lemeshko, “A simple model for high rotational excitations of molecules in a superfluid,” New Journal of Physics, vol. 24, no. 7. IOP, 2022.","short":"I. Cherepanov, G. Bighin, C.A. Schouder, A.S. Chatterley, H. Stapelfeldt, M. Lemeshko, New Journal of Physics 24 (2022).","mla":"Cherepanov, Igor, et al. “A Simple Model for High Rotational Excitations of Molecules in a Superfluid.” New Journal of Physics, vol. 24, no. 7, 075004, IOP, 2022, doi:10.1088/1367-2630/ac8113.","ista":"Cherepanov I, Bighin G, Schouder CA, Chatterley AS, Stapelfeldt H, Lemeshko M. 2022. A simple model for high rotational excitations of molecules in a superfluid. New Journal of Physics. 24(7), 075004.","chicago":"Cherepanov, Igor, Giacomo Bighin, Constant A. Schouder, Adam S. Chatterley, Henrik Stapelfeldt, and Mikhail Lemeshko. “A Simple Model for High Rotational Excitations of Molecules in a Superfluid.” New Journal of Physics. IOP, 2022. https://doi.org/10.1088/1367-2630/ac8113."},"user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","project":[{"name":"International IST Doctoral Program","grant_number":"665385","call_identifier":"H2020","_id":"2564DBCA-B435-11E9-9278-68D0E5697425"},{"name":"Angulon: physics and applications of a new quasiparticle","grant_number":"801770","_id":"2688CF98-B435-11E9-9278-68D0E5697425","call_identifier":"H2020"},{"call_identifier":"FWF","_id":"26986C82-B435-11E9-9278-68D0E5697425","grant_number":"M02641","name":"A path-integral approach to composite impurities"}],"article_number":"075004","doi":"10.1088/1367-2630/ac8113","date_published":"2022-08-11T00:00:00Z","date_created":"2022-08-28T22:02:01Z","has_accepted_license":"1","isi":1,"year":"2022","day":"11","publication":"New Journal of Physics","quality_controlled":"1","publisher":"IOP","oa":1,"acknowledgement":"IC acknowledges the support by the European Union's Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie Grant Agreement No. 665385. GB acknowledges support from the Austrian Science Fund (FWF), under Project No. M2461-N27 and from the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) under Germany's Excellence Strategy EXC2181/1-390900948 (the Heidelberg STRUCTURES Excellence Cluster). ML acknowledges support by the Austrian Science Fund (FWF), under Project No. P29902-N27, and by the European Research Council (ERC) starting Grant No. 801770 (ANGULON). HS acknowledges support from the Independent Research Fund Denmark (Project No. 8021-00232B) and from the Villum Fonden through a Villum Investigator Grant No. 25886."},{"isi":1,"year":"2021","day":"30","publication":"Physical Review A","doi":"10.1103/PhysRevA.104.L061303","date_published":"2021-12-30T00:00:00Z","date_created":"2022-01-16T23:01:29Z","acknowledgement":"I.C. acknowledges the support by the European Union’s Horizon 2020 research and innovation programme under the Marie Sklodowska-Curie Grant Agreement No. 665385. G.B. acknowledges support from the Austrian Science Fund (FWF), under project No. M2461-N27. M.L. acknowledges support by the Austrian Science Fund (FWF), under project No. P29902-N27, and by the European Research Council (ERC) Starting Grant No. 801770 (ANGULON). H.S acknowledges support from the European Research Council-AdG (Project No. 320459, DropletControl) and from The Villum Foundation through a Villum Investigator grant no. 25886.","publisher":"American Physical Society","quality_controlled":"1","oa":1,"citation":{"ista":"Cherepanov I, Bighin G, Schouder CA, Chatterley AS, Albrechtsen SH, Muñoz AV, Christiansen L, Stapelfeldt H, Lemeshko M. 2021. Excited rotational states of molecules in a superfluid. Physical Review A. 104(6), L061303.","chicago":"Cherepanov, Igor, Giacomo Bighin, Constant A. Schouder, Adam S. Chatterley, Simon H. Albrechtsen, Alberto Viñas Muñoz, Lars Christiansen, Henrik Stapelfeldt, and Mikhail Lemeshko. “Excited Rotational States of Molecules in a Superfluid.” Physical Review A. American Physical Society, 2021. https://doi.org/10.1103/PhysRevA.104.L061303.","apa":"Cherepanov, I., Bighin, G., Schouder, C. A., Chatterley, A. S., Albrechtsen, S. H., Muñoz, A. V., … Lemeshko, M. (2021). Excited rotational states of molecules in a superfluid. Physical Review A. American Physical Society. https://doi.org/10.1103/PhysRevA.104.L061303","ama":"Cherepanov I, Bighin G, Schouder CA, et al. Excited rotational states of molecules in a superfluid. Physical Review A. 2021;104(6). doi:10.1103/PhysRevA.104.L061303","ieee":"I. Cherepanov et al., “Excited rotational states of molecules in a superfluid,” Physical Review A, vol. 104, no. 6. American Physical Society, 2021.","short":"I. Cherepanov, G. Bighin, C.A. Schouder, A.S. Chatterley, S.H. Albrechtsen, A.V. Muñoz, L. Christiansen, H. Stapelfeldt, M. Lemeshko, Physical Review A 104 (2021).","mla":"Cherepanov, Igor, et al. “Excited Rotational States of Molecules in a Superfluid.” Physical Review A, vol. 104, no. 6, L061303, American Physical Society, 2021, doi:10.1103/PhysRevA.104.L061303."},"user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","author":[{"id":"339C7E5A-F248-11E8-B48F-1D18A9856A87","first_name":"Igor","full_name":"Cherepanov, Igor","last_name":"Cherepanov"},{"id":"4CA96FD4-F248-11E8-B48F-1D18A9856A87","first_name":"Giacomo","last_name":"Bighin","full_name":"Bighin, Giacomo","orcid":"0000-0001-8823-9777"},{"first_name":"Constant A.","last_name":"Schouder","full_name":"Schouder, Constant A."},{"first_name":"Adam S.","last_name":"Chatterley","full_name":"Chatterley, Adam S."},{"first_name":"Simon H.","last_name":"Albrechtsen","full_name":"Albrechtsen, Simon H."},{"last_name":"Muñoz","full_name":"Muñoz, Alberto Viñas","first_name":"Alberto Viñas"},{"last_name":"Christiansen","full_name":"Christiansen, Lars","first_name":"Lars"},{"full_name":"Stapelfeldt, Henrik","last_name":"Stapelfeldt","first_name":"Henrik"},{"last_name":"Lemeshko","full_name":"Lemeshko, Mikhail","orcid":"0000-0002-6990-7802","first_name":"Mikhail","id":"37CB05FA-F248-11E8-B48F-1D18A9856A87"}],"article_processing_charge":"No","external_id":{"isi":["000739618300001"],"arxiv":["2107.00468"]},"title":"Excited rotational states of molecules in a superfluid","article_number":"L061303","project":[{"_id":"26031614-B435-11E9-9278-68D0E5697425","call_identifier":"FWF","name":"Quantum rotations in the presence of a many-body environment","grant_number":"P29902"},{"grant_number":"801770","name":"Angulon: physics and applications of a new quasiparticle","_id":"2688CF98-B435-11E9-9278-68D0E5697425","call_identifier":"H2020"},{"_id":"2564DBCA-B435-11E9-9278-68D0E5697425","call_identifier":"H2020","grant_number":"665385","name":"International IST Doctoral Program"},{"grant_number":"M02641","name":"A path-integral approach to composite impurities","call_identifier":"FWF","_id":"26986C82-B435-11E9-9278-68D0E5697425"}],"publication_identifier":{"eissn":["2469-9934"],"issn":["2469-9926"]},"publication_status":"published","language":[{"iso":"eng"}],"volume":104,"issue":"6","ec_funded":1,"abstract":[{"text":"We combine experimental and theoretical approaches to explore excited rotational states of molecules embedded in helium nanodroplets using CS2 and I2 as examples. Laser-induced nonadiabatic molecular alignment is employed to measure spectral lines for rotational states extending beyond those initially populated at the 0.37 K droplet temperature. We construct a simple quantum-mechanical model, based on a linear rotor coupled to a single-mode bosonic bath, to determine the rotational energy structure in its entirety. The calculated and measured spectral lines are in good agreement. We show that the effect of the surrounding superfluid on molecular rotation can be rationalized by a single quantity, the angular momentum, transferred from the molecule to the droplet.","lang":"eng"}],"oa_version":"Preprint","scopus_import":"1","main_file_link":[{"open_access":"1","url":"http://128.84.4.18/abs/2107.00468"}],"month":"12","intvolume":" 104","date_updated":"2023-08-17T06:52:17Z","department":[{"_id":"MiLe"}],"_id":"10631","article_type":"original","type":"journal_article","status":"public"},{"publication_identifier":{"eissn":["10797114"],"issn":["00319007"]},"publication_status":"published","language":[{"iso":"eng"}],"issue":"1","volume":125,"ec_funded":1,"abstract":[{"text":"Alignment of OCS, CS2, and I2 molecules embedded in helium nanodroplets is measured as a function\r\nof time following rotational excitation by a nonresonant, comparatively weak ps laser pulse. The distinct\r\npeaks in the power spectra, obtained by Fourier analysis, are used to determine the rotational, B, and\r\ncentrifugal distortion, D, constants. For OCS, B and D match the values known from IR spectroscopy. For\r\nCS2 and I2, they are the first experimental results reported. The alignment dynamics calculated from the\r\ngas-phase rotational Schrödinger equation, using the experimental in-droplet B and D values, agree in\r\ndetail with the measurement for all three molecules. The rotational spectroscopy technique for molecules in\r\nhelium droplets introduced here should apply to a range of molecules and complexes.","lang":"eng"}],"oa_version":"Preprint","scopus_import":"1","main_file_link":[{"url":"https://arxiv.org/abs/2006.02694","open_access":"1"}],"month":"07","intvolume":" 125","date_updated":"2023-08-22T08:22:43Z","department":[{"_id":"MiLe"}],"_id":"8170","article_type":"original","type":"journal_article","status":"public","isi":1,"year":"2020","day":"03","publication":"Physical Review Letters","doi":"10.1103/PhysRevLett.125.013001","date_published":"2020-07-03T00:00:00Z","date_created":"2020-07-26T22:01:02Z","acknowledgement":"H. S. acknowledges support from the European Research Council-AdG (Project No. 320459, DropletControl)\r\nand from The Villum Foundation through a Villum Investigator Grant No. 25886. M. L. acknowledges support\r\nby the Austrian Science Fund (FWF), under Project No. P29902-N27, and by the European Research Council\r\n(ERC) Starting Grant No. 801770 (ANGULON). G. B. acknowledges support from the Austrian Science Fund\r\n(FWF), under Project No. M2641-N27. I. C. acknowledges support by the European Union’s Horizon 2020 research and\r\ninnovation programme under the Marie Skłodowska-Curie Grant Agreement No. 665385. Computational resources for\r\nthe PIMC simulations were provided by the division for scientific computing at the Johannes Kepler University.","publisher":"American Physical Society","quality_controlled":"1","oa":1,"citation":{"short":"A.S. Chatterley, L. Christiansen, C.A. Schouder, A.V. Jørgensen, B. Shepperson, I. Cherepanov, G. Bighin, R.E. Zillich, M. Lemeshko, H. Stapelfeldt, Physical Review Letters 125 (2020).","ieee":"A. S. Chatterley et al., “Rotational coherence spectroscopy of molecules in Helium nanodroplets: Reconciling the time and the frequency domains,” Physical Review Letters, vol. 125, no. 1. American Physical Society, 2020.","ama":"Chatterley AS, Christiansen L, Schouder CA, et al. Rotational coherence spectroscopy of molecules in Helium nanodroplets: Reconciling the time and the frequency domains. Physical Review Letters. 2020;125(1). doi:10.1103/PhysRevLett.125.013001","apa":"Chatterley, A. S., Christiansen, L., Schouder, C. A., Jørgensen, A. V., Shepperson, B., Cherepanov, I., … Stapelfeldt, H. (2020). Rotational coherence spectroscopy of molecules in Helium nanodroplets: Reconciling the time and the frequency domains. Physical Review Letters. American Physical Society. https://doi.org/10.1103/PhysRevLett.125.013001","mla":"Chatterley, Adam S., et al. “Rotational Coherence Spectroscopy of Molecules in Helium Nanodroplets: Reconciling the Time and the Frequency Domains.” Physical Review Letters, vol. 125, no. 1, 013001, American Physical Society, 2020, doi:10.1103/PhysRevLett.125.013001.","ista":"Chatterley AS, Christiansen L, Schouder CA, Jørgensen AV, Shepperson B, Cherepanov I, Bighin G, Zillich RE, Lemeshko M, Stapelfeldt H. 2020. Rotational coherence spectroscopy of molecules in Helium nanodroplets: Reconciling the time and the frequency domains. Physical Review Letters. 125(1), 013001.","chicago":"Chatterley, Adam S., Lars Christiansen, Constant A. Schouder, Anders V. Jørgensen, Benjamin Shepperson, Igor Cherepanov, Giacomo Bighin, Robert E. Zillich, Mikhail Lemeshko, and Henrik Stapelfeldt. “Rotational Coherence Spectroscopy of Molecules in Helium Nanodroplets: Reconciling the Time and the Frequency Domains.” Physical Review Letters. American Physical Society, 2020. https://doi.org/10.1103/PhysRevLett.125.013001."},"user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","author":[{"full_name":"Chatterley, Adam S.","last_name":"Chatterley","first_name":"Adam S."},{"full_name":"Christiansen, Lars","last_name":"Christiansen","first_name":"Lars"},{"first_name":"Constant A.","last_name":"Schouder","full_name":"Schouder, Constant A."},{"first_name":"Anders V.","full_name":"Jørgensen, Anders V.","last_name":"Jørgensen"},{"last_name":"Shepperson","full_name":"Shepperson, Benjamin","first_name":"Benjamin"},{"id":"339C7E5A-F248-11E8-B48F-1D18A9856A87","first_name":"Igor","last_name":"Cherepanov","full_name":"Cherepanov, Igor"},{"first_name":"Giacomo","id":"4CA96FD4-F248-11E8-B48F-1D18A9856A87","full_name":"Bighin, Giacomo","orcid":"0000-0001-8823-9777","last_name":"Bighin"},{"last_name":"Zillich","full_name":"Zillich, Robert E.","first_name":"Robert E."},{"full_name":"Lemeshko, Mikhail","orcid":"0000-0002-6990-7802","last_name":"Lemeshko","id":"37CB05FA-F248-11E8-B48F-1D18A9856A87","first_name":"Mikhail"},{"first_name":"Henrik","full_name":"Stapelfeldt, Henrik","last_name":"Stapelfeldt"}],"external_id":{"isi":["000544526900006"],"arxiv":["2006.02694"]},"article_processing_charge":"No","title":"Rotational coherence spectroscopy of molecules in Helium nanodroplets: Reconciling the time and the frequency domains","article_number":"013001","project":[{"name":"Quantum rotations in the presence of a many-body environment","grant_number":"P29902","call_identifier":"FWF","_id":"26031614-B435-11E9-9278-68D0E5697425"},{"grant_number":"801770","name":"Angulon: physics and applications of a new quasiparticle","_id":"2688CF98-B435-11E9-9278-68D0E5697425","call_identifier":"H2020"},{"_id":"26986C82-B435-11E9-9278-68D0E5697425","call_identifier":"FWF","name":"A path-integral approach to composite impurities","grant_number":"M02641"},{"call_identifier":"H2020","_id":"2564DBCA-B435-11E9-9278-68D0E5697425","grant_number":"665385","name":"International IST Doctoral Program"}]},{"oa_version":"Submitted Version","abstract":[{"lang":"eng","text":"The formation of vortices is usually considered to be the main mechanism of angular momentum disposal in superfluids. Recently, it was predicted that a superfluid can acquire angular momentum via an alternative, microscopic route -- namely, through interaction with rotating impurities, forming so-called `angulon quasiparticles' [Phys. Rev. Lett. 114, 203001 (2015)]. The angulon instabilities correspond to transfer of a small number of angular momentum quanta from the impurity to the superfluid, as opposed to vortex instabilities, where angular momentum is quantized in units of ℏ per atom. Furthermore, since conventional impurities (such as molecules) represent three-dimensional (3D) rotors, the angular momentum transferred is intrinsically 3D as well, as opposed to a merely planar rotation which is inherent to vortices. Herein we show that the angulon theory can explain the anomalous broadening of the spectroscopic lines observed for CH 3 and NH 3 molecules in superfluid helium nanodroplets, thereby providing a fingerprint of the emerging angulon instabilities in experiment."}],"intvolume":" 1","month":"08","main_file_link":[{"open_access":"1","url":"https://arxiv.org/abs/1705.09220"}],"scopus_import":"1","language":[{"iso":"eng"}],"publication_status":"published","ec_funded":1,"issue":"3","volume":1,"_id":"994","status":"public","type":"journal_article","date_updated":"2023-09-22T09:53:42Z","department":[{"_id":"MiLe"}],"oa":1,"publisher":"American Physical Society","quality_controlled":"1","publication":"Physical Review Materials","day":"08","year":"2017","isi":1,"date_created":"2018-12-11T11:49:35Z","doi":"10.1103/PhysRevMaterials.1.035602","date_published":"2017-08-08T00:00:00Z","project":[{"_id":"26031614-B435-11E9-9278-68D0E5697425","call_identifier":"FWF","name":"Quantum rotations in the presence of a many-body environment","grant_number":"P29902"},{"_id":"2564DBCA-B435-11E9-9278-68D0E5697425","call_identifier":"H2020","grant_number":"665385","name":"International IST Doctoral Program"}],"user_id":"c635000d-4b10-11ee-a964-aac5a93f6ac1","citation":{"mla":"Cherepanov, Igor, and Mikhail Lemeshko. “Fingerprints of Angulon Instabilities in the Spectra of Matrix-Isolated Molecules.” Physical Review Materials, vol. 1, no. 3, American Physical Society, 2017, doi:10.1103/PhysRevMaterials.1.035602.","ama":"Cherepanov I, Lemeshko M. Fingerprints of angulon instabilities in the spectra of matrix-isolated molecules. Physical Review Materials. 2017;1(3). doi:10.1103/PhysRevMaterials.1.035602","apa":"Cherepanov, I., & Lemeshko, M. (2017). Fingerprints of angulon instabilities in the spectra of matrix-isolated molecules. Physical Review Materials. American Physical Society. https://doi.org/10.1103/PhysRevMaterials.1.035602","short":"I. Cherepanov, M. Lemeshko, Physical Review Materials 1 (2017).","ieee":"I. Cherepanov and M. Lemeshko, “Fingerprints of angulon instabilities in the spectra of matrix-isolated molecules,” Physical Review Materials, vol. 1, no. 3. American Physical Society, 2017.","chicago":"Cherepanov, Igor, and Mikhail Lemeshko. “Fingerprints of Angulon Instabilities in the Spectra of Matrix-Isolated Molecules.” Physical Review Materials. American Physical Society, 2017. https://doi.org/10.1103/PhysRevMaterials.1.035602.","ista":"Cherepanov I, Lemeshko M. 2017. Fingerprints of angulon instabilities in the spectra of matrix-isolated molecules. Physical Review Materials. 1(3)."},"title":"Fingerprints of angulon instabilities in the spectra of matrix-isolated molecules","article_processing_charge":"No","external_id":{"isi":["000416564000004"]},"publist_id":"6405","author":[{"id":"339C7E5A-F248-11E8-B48F-1D18A9856A87","first_name":"Igor","full_name":"Cherepanov, Igor","last_name":"Cherepanov"},{"orcid":"0000-0002-6990-7802","full_name":"Lemeshko, Mikhail","last_name":"Lemeshko","id":"37CB05FA-F248-11E8-B48F-1D18A9856A87","first_name":"Mikhail"}]}]