Zobrazeno 1 - 10
of 78
pro vyhledávání: '"Fabrice Gerbier"'
Publikováno v:
New Journal of Physics, Vol 20, Iss 1, p 015004 (2018)
Ultracold bosonic atoms trapped in a two-leg ladder pierced by a magnetic field provide a minimal and quasi-one-dimensional instance to study the interplay between orbital magnetism and interactions. Using time-dependent matrix-product-state simulati
Externí odkaz:
https://doaj.org/article/901dccfc3e0d44dbbc844bd5cfb2c069
Autor:
Luigi De Sarlo, Lingxuan Shao, Vincent Corre, Tilman Zibold, David Jacob, Jean Dalibard, Fabrice Gerbier
Publikováno v:
New Journal of Physics, Vol 15, Iss 11, p 113039 (2013)
We study spin fragmentation of an antiferromagnetic spin 1 condensate in the presence of a quadratic Zeeman (QZ) effect breaking spin rotational symmetry. We describe how the QZ effect turns a fragmented spin state, with large fluctuations of the Zee
Externí odkaz:
https://doaj.org/article/cc10561f6d9b4670aa381dece792a53d
Autor:
Manel Bosch Aguilera, Alexis Ghermaoui, Rémy Vatré, Raphaël Bouganne, Jérôme Beugnon, Fabrice Gerbier
Publikováno v:
Manel Bosch Aguilera
We report on experiments exploring the non-Hermitian dynamics of pairs of two-level atoms tightly confined in an optical lattice and driven by a near-resonant laser. Although spontaneous emission is negligible for the long-lived excited state, two-bo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5da07816867c09cb52d0c263459a6dde
Publikováno v:
Science (New York, N.Y.). 373(6561)
Weakly interacting Bose gases usually form Bose-Einstein condensates in which most particles occupy the same single-particle state. However, when this state cannot realize a continuous symmetry of the many-body Hamiltonian, a fragmented condensate ex
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::27148a82146794bfe3e709f57b806f59
https://pubmed.ncbi.nlm.nih.gov/34529460
https://pubmed.ncbi.nlm.nih.gov/34529460
Publikováno v:
Physical Review A
Physical Review A, American Physical Society 2021, 103 (3), ⟨10.1103/PhysRevA.103.L031302⟩
Physical Review A, American Physical Society 2021, 103 (3), ⟨10.1103/PhysRevA.103.L031302⟩
International audience; We present experiments revealing the competing effect of quantum fluctuations and of a coherent seed in the dynamics of a spin-1 Bose-Einstein condensate, and discuss the relevance of a mean-field description of our system. We
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6164340db5ff6923ef8baab002bf36c3
https://doi.org/10.1103/physreva.103.l031302
https://doi.org/10.1103/physreva.103.l031302
Publikováno v:
Physical Review Letters
Physical Review Letters, American Physical Society, 2021, ⟨10.1103/PhysRevLett.126.063401⟩
Physical Review Letters, American Physical Society, 2021, ⟨10.1103/PhysRevLett.126.063401⟩
The dynamics of a many-body system can take many forms, from a purely reversible evolution to fast thermalization. Here we show experimentally and numerically that an assembly of spin 1 atoms all in the same spatial mode allows one to explore this wi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e9ecdd6a95325b2656a56d3e7080b092
https://hal.archives-ouvertes.fr/hal-03098378
https://hal.archives-ouvertes.fr/hal-03098378
Autor:
Davide Rossini, R. Bouganne, Leonardo Mazza, Fabrice Gerbier, Rémy Vatré, Manel Bosch Aguilera, Alexis Ghermaoui, Jérôme Beugnon
Publikováno v:
Physical Review A
Physical Review A, American Physical Society 2021, ⟨10.1103/PhysRevA.103.L060201⟩
Physical Review A, American Physical Society 2021, ⟨10.1103/PhysRevA.103.L060201⟩
We consider strong two-body losses in bosonic gases trapped in one-dimensional optical lattices. We exploit the separation of time scales typical of a system in the many-body quantum Zeno regime to establish a connection with the theory of the time-d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ba7c850f419856ed99efc412249cbac0
https://hal.archives-ouvertes.fr/hal-03098385
https://hal.archives-ouvertes.fr/hal-03098385
Publikováno v:
Physical Review Letters
Physical Review Letters, American Physical Society, 2020, 125 (3), ⟨10.1103/PhysRevLett.125.033401⟩
Physical Review Letters, American Physical Society, 2020, 125 (3), ⟨10.1103/PhysRevLett.125.033401⟩
Using parametric conversion induced by a Shapiro-type resonance, we produce and characterize a two-mode squeezed vacuum state in a sodium spin 1 Bose-Einstein condensate. Spin-changing collisions generate correlated pairs of atoms in the $m=\pm 1$ Ze
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d73d64610e5ec16469199c3f72910a14
Autor:
Jean Dalibard, Karina Jimenez-Garcia, Bertrand Evrard, A. Invernizzi, Fabrice Gerbier, C. Frapolli
Publikováno v:
Nature Communications
Nature Communications, Nature Publishing Group, 2019, 10 (1), ⟨10.1038/s41467-019-08505-6⟩
Nature Communications, Nature Publishing Group, 2019, 10, pp.1422. ⟨10.1038/s41467-019-08505-6⟩
Nature Communications, Vol 10, Iss 1, Pp 1-11 (2019)
Nature Communications, Nature Publishing Group, 2019, 10 (1), ⟨10.1038/s41467-019-08505-6⟩
Nature Communications, Nature Publishing Group, 2019, 10, pp.1422. ⟨10.1038/s41467-019-08505-6⟩
Nature Communications, Vol 10, Iss 1, Pp 1-11 (2019)
Quantum systems of many interacting particles at low temperatures generally organize themselves into ordered phases of matter, whose nature and symmetries are captured by an order parameter. In the simplest cases, this order parameter is spatially un
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c6ed1b1243c67cd5089b524b3eb477e7
https://hal.archives-ouvertes.fr/hal-03098357
https://hal.archives-ouvertes.fr/hal-03098357
Publikováno v:
New Journal of Physics
New Journal of Physics, Institute of Physics: Open Access Journals, 2018, 20, pp.015004. ⟨10.1088/1367-2630/aa9ca2⟩
New journal of physics 20 (2018). doi:10.1088/1367-2630/aa9ca2
info:cnr-pdr/source/autori:Strinati M.C.; Gerbier F.; Mazza L./titolo:Spin-gap spectroscopy in a bosonic flux ladder/doi:10.1088%2F1367-2630%2Faa9ca2/rivista:New journal of physics/anno:2018/pagina_da:/pagina_a:/intervallo_pagine:/volume:20
New Journal of Physics, Institute of Physics: Open Access Journals, 2018, 20, pp.015004. ⟨10.1088/1367-2630/aa9ca2⟩
New journal of physics 20 (2018). doi:10.1088/1367-2630/aa9ca2
info:cnr-pdr/source/autori:Strinati M.C.; Gerbier F.; Mazza L./titolo:Spin-gap spectroscopy in a bosonic flux ladder/doi:10.1088%2F1367-2630%2Faa9ca2/rivista:New journal of physics/anno:2018/pagina_da:/pagina_a:/intervallo_pagine:/volume:20
Ultracold bosonic atoms trapped in a two-leg ladder pierced by a magnetic field provide a minimal and quasi-one-dimensional instance to study the interplay between orbital magnetism and interactions. Using time-dependent matrix-product-states simulat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4ef62e0737f7a9248d998076f14d2b3b
https://hal.sorbonne-universite.fr/hal-01696270/file/Strinati_2018_New_J._Phys._20_015004.pdf
https://hal.sorbonne-universite.fr/hal-01696270/file/Strinati_2018_New_J._Phys._20_015004.pdf