Collapse times for attractive Bose-Einstein condensates

We argue that the main mechanism for condensate collapse in an attractive Bose-Einstein condensate is the loss of coherence between atoms a finite distance apart, rather than the growth of the occupation number in non-condensate modes. Since the former mechanism is faster than the latter by a factor...

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Autor principal: Calzetta, Esteban Adolfo
Publicado: 2008
Materias:
Approximation theory
Bose-Einstein condensation
Mathematical models
Collapse times
Theoretical models
Atomic physics
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09534075_v41_n2_p_Calzetta
http://hdl.handle.net/20.500.12110/paper_09534075_v41_n2_p_Calzetta
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_09534075_v41_n2_p_Calzetta
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spelling paper:paper_09534075_v41_n2_p_Calzetta2025-07-30T18:31:29Z Collapse times for attractive Bose-Einstein condensates Calzetta, Esteban Adolfo Approximation theory Bose-Einstein condensation Mathematical models Collapse times Theoretical models Atomic physics We argue that the main mechanism for condensate collapse in an attractive Bose-Einstein condensate is the loss of coherence between atoms a finite distance apart, rather than the growth of the occupation number in non-condensate modes. Since the former mechanism is faster than the latter by a factor of approximately 3/2, this helps to dispel the apparent failure of field theoretical models in predicting the collapse time of the condensate. © 2008 IOP Publishing Ltd. Fil:Calzetta, E. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2008 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09534075_v41_n2_p_Calzetta http://hdl.handle.net/20.500.12110/paper_09534075_v41_n2_p_Calzetta
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Approximation theory
Bose-Einstein condensation
Mathematical models
Collapse times
Theoretical models
Atomic physics
spellingShingle Approximation theory
Bose-Einstein condensation
Mathematical models
Collapse times
Theoretical models
Atomic physics
Calzetta, Esteban Adolfo
Collapse times for attractive Bose-Einstein condensates
topic_facet Approximation theory
Bose-Einstein condensation
Mathematical models
Collapse times
Theoretical models
Atomic physics
description We argue that the main mechanism for condensate collapse in an attractive Bose-Einstein condensate is the loss of coherence between atoms a finite distance apart, rather than the growth of the occupation number in non-condensate modes. Since the former mechanism is faster than the latter by a factor of approximately 3/2, this helps to dispel the apparent failure of field theoretical models in predicting the collapse time of the condensate. © 2008 IOP Publishing Ltd.
author Calzetta, Esteban Adolfo
author_facet Calzetta, Esteban Adolfo
author_sort Calzetta, Esteban Adolfo
title Collapse times for attractive Bose-Einstein condensates
title_short Collapse times for attractive Bose-Einstein condensates
title_full Collapse times for attractive Bose-Einstein condensates
title_fullStr Collapse times for attractive Bose-Einstein condensates
title_full_unstemmed Collapse times for attractive Bose-Einstein condensates
title_sort collapse times for attractive bose-einstein condensates
publishDate 2008
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09534075_v41_n2_p_Calzetta
http://hdl.handle.net/20.500.12110/paper_09534075_v41_n2_p_Calzetta
work_keys_str_mv AT calzettaestebanadolfo collapsetimesforattractiveboseeinsteincondensates
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