TY  - CONF
AU  - Chakrabarty, Sankha
AU  - Enomoto, Seishi
AU  - Han, Yaqi
AU  - Sikivie, Pierre
AU  - Todarello, Elisa
TI  - Duration of Classicality of Homogeneous   Condensateswith Attractive Interactions
IS  - DESY-PROC-2017-02
CY  - Hamburg
PB  - Verlag Deutsches Elektronen-Synchrotron
M1  - PUBDB-2018-01778
M1  - DESY-PROC-2017-02
SN  - 978-3-945931-17-2
T2  - DESY-PROC
SP  - 231-235
PY  - 2018
AB  - Dark matter axions and other highly degenerate bosonic fluids are commonly described by classical field equations. In a recent paper  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.
T2  - 13th Patras Workshop on Axions, WIMPs and WISPs
CY  - 15 May 2017 - 19 May 2017, Thessaloniki (Greece)
Y2  - 15 May 2017 - 19 May 2017
M2  - Thessaloniki, Greece
LB  - PUB:(DE-HGF)29 ; PUB:(DE-HGF)8 ; PUB:(DE-HGF)7
DO  - DOI:10.3204/DESY-PROC-2017-02/sikivie_pierre
UR  - https://bib-pubdb1.desy.de/record/402249
ER  -