Report/Contribution to a conference proceedings/Contribution to a book

PUBDB-2018-01778

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Duration of Classicality of Homogeneous Condensateswith Attractive Interactions

Chakrabarty, S. ; Enomoto, S. ; Han, Y. ; Sikivie, P. ; Todarello, E.

2018
Verlag Deutsches Elektronen-Synchrotron Hamburg
ISBN: 978-3-945931-17-2

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Please use a persistent id in citations: doi:10.3204/DESY-PROC-2017-02/sikivie_pierre

Report No.: DESY-PROC-2017-02

Abstract: Dark matter axions and other highly degenerate bosonic fluids are commonly described by classical field equations. In a recent paper \cite{BECprop} we calculated the duration of classicality of homogeneous condensates with attractive contact interactions and of self-gravitating homogeneous condensates in critical expansion. According to their classical equations of motion, such condensates persist forever. In their quantum evolution parametric resonance causes quanta to jump in pairs out of the condensate into all modes with wavevector less than some critical value. We estimated in each case the time scale over which the condensate is depleted and after which a classical description is invalid.

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Contributing Institute(s):

1. Bibliothek und Dokumentation (L)

Research Program(s):

1. 899 - ohne Topic (POF3-899) (POF3-899)

Experiment(s):

1. No specific instrument

Appears in the scientific report 2018

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Linked articles:

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Book/Proceedings/Report Maroudas, M. (Editor)
13th "Patras" Workshop on Axions, WIMPs and WISPs, PATRAS 2017
201813th Patras Workshop on Axions, WIMPs and WISPs, AXION-WIMP 2017, ThessalonikiThessaloniki, Greece, 15 May 2017 - 19 May 20172017-05-152017-05-19 Hamburg : Verlag Deutsches Elektronen-Synchrotron, DESY-PROC (2018) [10.3204/DESY-PROC-2017-02]2018     Files BibTeX | EndNote: XML, Text | RIS

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