Early universe quantum processes in BEC collapse experiments

We show that in the collapse of a Bose-Einstein condensate (BEC) 4certain processes involved and mechanisms at work share a common origin with corresponding quantum field processes in the early universe such as particle creation, structure formation, and spinodal instability. Phenomena associated wi...

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Detalles Bibliográficos
Autor principal: Calzetta, Esteban Adolfo
Publicado: 2005
Materias:
Bose-Einstein condensates
Cosmology
Field theory
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00207748_v44_n10_p1691_Calzetta
http://hdl.handle.net/20.500.12110/paper_00207748_v44_n10_p1691_Calzetta
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_00207748_v44_n10_p1691_Calzetta
record_format dspace
spelling paper:paper_00207748_v44_n10_p1691_Calzetta2023-06-08T14:41:55Z Early universe quantum processes in BEC collapse experiments Calzetta, Esteban Adolfo Bose-Einstein condensates Cosmology Field theory We show that in the collapse of a Bose-Einstein condensate (BEC) 4certain processes involved and mechanisms at work share a common origin with corresponding quantum field processes in the early universe such as particle creation, structure formation, and spinodal instability. Phenomena associated with the controlled BEC collapse observed in the experiment of Donley et al. (Donley, E., et al. (2001), Nature 412, 295; Claussen, N. (2003), PhD Thesis, University of Colorado; Claussen, N., et al. (2003), Physical Review A 67, 060701(R))(they call it "Bose-Nova," see also Chin, J., Vogels, J., and Ketterle, W. (2003), Physical Review Letters 90, 160405) such as the appearance of bursts and jets can be explained as a consequence of the squeezing and amplification of quantum fluctuations above the condensate by the dynamics of the condensate. Using the physical insight gained in depicting these cosmological processes, our analysis of the changing amplitude and particle contents of quantum excitations in these BEC dynamics provides excellent quantitative fits with the experimental data on the scaling behavior of the collapse time and the amount of particles emitted in the jets. Because of the coherence properties of BEC and the high degree of control and measurement precision in atomic and optical systems, we see great potential in the design of tabletop experiments for testing out general ideas and specific (quantum field) processes in the early universe, thus opening up the possibility for implementing "laboratory cosmology.". © 2005 Springer Science+Business Media, Inc. Fil:Calzetta, E.A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2005 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00207748_v44_n10_p1691_Calzetta http://hdl.handle.net/20.500.12110/paper_00207748_v44_n10_p1691_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 Bose-Einstein condensates
Cosmology
Field theory
spellingShingle Bose-Einstein condensates
Cosmology
Field theory
Calzetta, Esteban Adolfo
Early universe quantum processes in BEC collapse experiments
topic_facet Bose-Einstein condensates
Cosmology
Field theory
description We show that in the collapse of a Bose-Einstein condensate (BEC) 4certain processes involved and mechanisms at work share a common origin with corresponding quantum field processes in the early universe such as particle creation, structure formation, and spinodal instability. Phenomena associated with the controlled BEC collapse observed in the experiment of Donley et al. (Donley, E., et al. (2001), Nature 412, 295; Claussen, N. (2003), PhD Thesis, University of Colorado; Claussen, N., et al. (2003), Physical Review A 67, 060701(R))(they call it "Bose-Nova," see also Chin, J., Vogels, J., and Ketterle, W. (2003), Physical Review Letters 90, 160405) such as the appearance of bursts and jets can be explained as a consequence of the squeezing and amplification of quantum fluctuations above the condensate by the dynamics of the condensate. Using the physical insight gained in depicting these cosmological processes, our analysis of the changing amplitude and particle contents of quantum excitations in these BEC dynamics provides excellent quantitative fits with the experimental data on the scaling behavior of the collapse time and the amount of particles emitted in the jets. Because of the coherence properties of BEC and the high degree of control and measurement precision in atomic and optical systems, we see great potential in the design of tabletop experiments for testing out general ideas and specific (quantum field) processes in the early universe, thus opening up the possibility for implementing "laboratory cosmology.". © 2005 Springer Science+Business Media, Inc.
author Calzetta, Esteban Adolfo
author_facet Calzetta, Esteban Adolfo
author_sort Calzetta, Esteban Adolfo
title Early universe quantum processes in BEC collapse experiments
title_short Early universe quantum processes in BEC collapse experiments
title_full Early universe quantum processes in BEC collapse experiments
title_fullStr Early universe quantum processes in BEC collapse experiments
title_full_unstemmed Early universe quantum processes in BEC collapse experiments
title_sort early universe quantum processes in bec collapse experiments
publishDate 2005
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00207748_v44_n10_p1691_Calzetta
http://hdl.handle.net/20.500.12110/paper_00207748_v44_n10_p1691_Calzetta
work_keys_str_mv AT calzettaestebanadolfo earlyuniversequantumprocessesinbeccollapseexperiments
_version_ 1768542924258148352

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