Shortcuts to adiabaticity for trapped ultracold gases
We study experimentally and theoretically the controlled transfer f harmonically trapped ultracold gases between different quantum states. n particular, we experimentally demonstrate a fast decompression anddisplacement of both a non-interacting gas and an interacting Bose-Einstein ondensate, which...
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2011
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| Acceso en línea: | http://hdl.handle.net/20.500.12110/paper_13672630_v13_n_p_Schaff https://repositoriouba.sisbi.uba.ar/gsdl/cgi-bin/library.cgi?a=d&c=artiaex&d=paper_13672630_v13_n_p_Schaff_oai |
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I28-R145-paper_13672630_v13_n_p_Schaff_oai2024-08-16 Schaff, J.-F. Capuzzi, P. Labeyrie, G. Vignolo, P. 2011 We study experimentally and theoretically the controlled transfer f harmonically trapped ultracold gases between different quantum states. n particular, we experimentally demonstrate a fast decompression anddisplacement of both a non-interacting gas and an interacting Bose-Einstein ondensate, which are initially at equilibrium. The decompression parameters re engineered such that the final state is identical to that obtained after a erfectly adiabatic transformation despite the fact that the fast decompression is erformed in the strongly non-adiabatic regime. During the transfer the atomic ample goes through strongly out-of-equilibrium states, while the external onfinement is modified until the system reaches the desired stationary state. The cheme is theoretically based on the invariants of motion and scaling equation echniques and can be generalized to decompression trajectories including an rbitrary deformation of the trap. It is also directly applicable to arbitrary initial on-equilibrium states. © IOP Publishing Ltd and Deutsche Physikalische Gesellschaft. Fil:Capuzzi, P. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. application/pdf http://hdl.handle.net/20.500.12110/paper_13672630_v13_n_p_Schaff info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar New J. Phys. 2011;13 Adiabatic transformation Adiabaticity Final state Invariants of motion Non-adiabatic Out-of-equilibrium state Quantum state Scaling equations Stationary state Ultracold gas Statistical mechanics Equations of motion Shortcuts to adiabaticity for trapped ultracold gases info:eu-repo/semantics/article info:ar-repo/semantics/artículo info:eu-repo/semantics/publishedVersion https://repositoriouba.sisbi.uba.ar/gsdl/cgi-bin/library.cgi?a=d&c=artiaex&d=paper_13672630_v13_n_p_Schaff_oai |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-145 |
| collection |
Repositorio Digital de la Universidad de Buenos Aires (UBA) |
| topic |
Adiabatic transformation Adiabaticity Final state Invariants of motion Non-adiabatic Out-of-equilibrium state Quantum state Scaling equations Stationary state Ultracold gas Statistical mechanics Equations of motion |
| spellingShingle |
Adiabatic transformation Adiabaticity Final state Invariants of motion Non-adiabatic Out-of-equilibrium state Quantum state Scaling equations Stationary state Ultracold gas Statistical mechanics Equations of motion Schaff, J.-F. Capuzzi, P. Labeyrie, G. Vignolo, P. Shortcuts to adiabaticity for trapped ultracold gases |
| topic_facet |
Adiabatic transformation Adiabaticity Final state Invariants of motion Non-adiabatic Out-of-equilibrium state Quantum state Scaling equations Stationary state Ultracold gas Statistical mechanics Equations of motion |
| description |
We study experimentally and theoretically the controlled transfer f harmonically trapped ultracold gases between different quantum states. n particular, we experimentally demonstrate a fast decompression anddisplacement of both a non-interacting gas and an interacting Bose-Einstein ondensate, which are initially at equilibrium. The decompression parameters re engineered such that the final state is identical to that obtained after a erfectly adiabatic transformation despite the fact that the fast decompression is erformed in the strongly non-adiabatic regime. During the transfer the atomic ample goes through strongly out-of-equilibrium states, while the external onfinement is modified until the system reaches the desired stationary state. The cheme is theoretically based on the invariants of motion and scaling equation echniques and can be generalized to decompression trajectories including an rbitrary deformation of the trap. It is also directly applicable to arbitrary initial on-equilibrium states. © IOP Publishing Ltd and Deutsche Physikalische Gesellschaft. |
| format |
Artículo Artículo publishedVersion |
| author |
Schaff, J.-F. Capuzzi, P. Labeyrie, G. Vignolo, P. |
| author_facet |
Schaff, J.-F. Capuzzi, P. Labeyrie, G. Vignolo, P. |
| author_sort |
Schaff, J.-F. |
| title |
Shortcuts to adiabaticity for trapped ultracold gases |
| title_short |
Shortcuts to adiabaticity for trapped ultracold gases |
| title_full |
Shortcuts to adiabaticity for trapped ultracold gases |
| title_fullStr |
Shortcuts to adiabaticity for trapped ultracold gases |
| title_full_unstemmed |
Shortcuts to adiabaticity for trapped ultracold gases |
| title_sort |
shortcuts to adiabaticity for trapped ultracold gases |
| publishDate |
2011 |
| url |
http://hdl.handle.net/20.500.12110/paper_13672630_v13_n_p_Schaff https://repositoriouba.sisbi.uba.ar/gsdl/cgi-bin/library.cgi?a=d&c=artiaex&d=paper_13672630_v13_n_p_Schaff_oai |
| work_keys_str_mv |
AT schaffjf shortcutstoadiabaticityfortrappedultracoldgases AT capuzzip shortcutstoadiabaticityfortrappedultracoldgases AT labeyrieg shortcutstoadiabaticityfortrappedultracoldgases AT vignolop shortcutstoadiabaticityfortrappedultracoldgases |
| _version_ |
1809357232507191296 |