Cold Fermions with Pairing Interactions: New Results Based on Fluiddynamical Descriptions

We present a rigorous derivation of the moment hierarchy of the density and pair density matrices of a two species fermion superfluid in coordinate representation. We discuss the tools to truncate at any desired level and present the derivation of the Extended Superfluid Thomas-Fermi (ESTF) fluiddyn...

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Autores principales: Capuzzi, P., Hernández, E.S., Szybisz, L.
Formato: INPR
Lenguaje:English
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Acceso en línea:http://hdl.handle.net/20.500.12110/paper_00222291_v_n_p1_Capuzzi
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spelling todo:paper_00222291_v_n_p1_Capuzzi2023-10-03T14:28:42Z Cold Fermions with Pairing Interactions: New Results Based on Fluiddynamical Descriptions Capuzzi, P. Hernández, E.S. Szybisz, L. Collective spectrum Fermion superfluid Moment hierarchy We present a rigorous derivation of the moment hierarchy of the density and pair density matrices of a two species fermion superfluid in coordinate representation. We discuss the tools to truncate at any desired level and present the derivation of the Extended Superfluid Thomas-Fermi (ESTF) fluiddynamical scheme. In order to establish the equation of state in equilibrium to be incorporated in the truncation, we extend the method of Papenbrock and Bertsch. We examine the dynamics of fluctuations in homogeneous fermion matter and show that it is consistent with the ordinary Random-Phase-approximation. We discuss some numerical results for equilibrium profiles and collective fluctuations of trapped cold gases. © 2011 Springer Science+Business Media, LLC. Fil:Capuzzi, P. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Hernández, E.S. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Szybisz, L. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. INPR English info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00222291_v_n_p1_Capuzzi
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
language English
orig_language_str_mv English
topic Collective spectrum
Fermion superfluid
Moment hierarchy
spellingShingle Collective spectrum
Fermion superfluid
Moment hierarchy
Capuzzi, P.
Hernández, E.S.
Szybisz, L.
Cold Fermions with Pairing Interactions: New Results Based on Fluiddynamical Descriptions
topic_facet Collective spectrum
Fermion superfluid
Moment hierarchy
description We present a rigorous derivation of the moment hierarchy of the density and pair density matrices of a two species fermion superfluid in coordinate representation. We discuss the tools to truncate at any desired level and present the derivation of the Extended Superfluid Thomas-Fermi (ESTF) fluiddynamical scheme. In order to establish the equation of state in equilibrium to be incorporated in the truncation, we extend the method of Papenbrock and Bertsch. We examine the dynamics of fluctuations in homogeneous fermion matter and show that it is consistent with the ordinary Random-Phase-approximation. We discuss some numerical results for equilibrium profiles and collective fluctuations of trapped cold gases. © 2011 Springer Science+Business Media, LLC.
format INPR
author Capuzzi, P.
Hernández, E.S.
Szybisz, L.
author_facet Capuzzi, P.
Hernández, E.S.
Szybisz, L.
author_sort Capuzzi, P.
title Cold Fermions with Pairing Interactions: New Results Based on Fluiddynamical Descriptions
title_short Cold Fermions with Pairing Interactions: New Results Based on Fluiddynamical Descriptions
title_full Cold Fermions with Pairing Interactions: New Results Based on Fluiddynamical Descriptions
title_fullStr Cold Fermions with Pairing Interactions: New Results Based on Fluiddynamical Descriptions
title_full_unstemmed Cold Fermions with Pairing Interactions: New Results Based on Fluiddynamical Descriptions
title_sort cold fermions with pairing interactions: new results based on fluiddynamical descriptions
url http://hdl.handle.net/20.500.12110/paper_00222291_v_n_p1_Capuzzi
work_keys_str_mv AT capuzzip coldfermionswithpairinginteractionsnewresultsbasedonfluiddynamicaldescriptions
AT hernandezes coldfermionswithpairinginteractionsnewresultsbasedonfluiddynamicaldescriptions
AT szybiszl coldfermionswithpairinginteractionsnewresultsbasedonfluiddynamicaldescriptions
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