Gravitational self-interactions of a degenerate quantum scalar field
Abstract
We develop a formalism to help calculate in quantum field theory the departures from the description of a system by classical field equations. We apply the formalism to a homogeneous condensate with attractive contact interactions and to a homogeneous self-gravitating condensate in critical expansion. In their classical descriptions, such condensates persist forever. We show that in their quantum description, parametric resonance causes quanta to jump in pairs out of the condensate into all modes with wave vector less than some critical value. We calculate, in each case, the time scale over which the homogeneous condensate is depleted and after which a classical description is invalid. We argue that the duration of classicality of inhomogeneous condensates is shorter than that of homogeneous condensates.
- Authors:
- Publication Date:
- Research Org.:
- College of William and Mary, Williamsburg, VA (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1422848
- Alternate Identifier(s):
- OSTI ID: 1507733
- Grant/Contract Number:
- FG02-97ER41209; FG02-02ER41209
- Resource Type:
- Published Article
- Journal Name:
- Physical Review D
- Additional Journal Information:
- Journal Name: Physical Review D Journal Volume: 97 Journal Issue: 4; Journal ID: ISSN 2470-0010
- Publisher:
- American Physical Society
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 79 ASTRONOMY AND ASTROPHYSICS
Citation Formats
Chakrabarty, Sankha S., Enomoto, Seishi, Han, Yaqi, Sikivie, Pierre, and Todarello, Elisa M. Gravitational self-interactions of a degenerate quantum scalar field. United States: N. p., 2018.
Web. doi:10.1103/PhysRevD.97.043531.
Chakrabarty, Sankha S., Enomoto, Seishi, Han, Yaqi, Sikivie, Pierre, & Todarello, Elisa M. Gravitational self-interactions of a degenerate quantum scalar field. United States. https://doi.org/10.1103/PhysRevD.97.043531
Chakrabarty, Sankha S., Enomoto, Seishi, Han, Yaqi, Sikivie, Pierre, and Todarello, Elisa M. Tue .
"Gravitational self-interactions of a degenerate quantum scalar field". United States. https://doi.org/10.1103/PhysRevD.97.043531.
@article{osti_1422848,
title = {Gravitational self-interactions of a degenerate quantum scalar field},
author = {Chakrabarty, Sankha S. and Enomoto, Seishi and Han, Yaqi and Sikivie, Pierre and Todarello, Elisa M.},
abstractNote = {We develop a formalism to help calculate in quantum field theory the departures from the description of a system by classical field equations. We apply the formalism to a homogeneous condensate with attractive contact interactions and to a homogeneous self-gravitating condensate in critical expansion. In their classical descriptions, such condensates persist forever. We show that in their quantum description, parametric resonance causes quanta to jump in pairs out of the condensate into all modes with wave vector less than some critical value. We calculate, in each case, the time scale over which the homogeneous condensate is depleted and after which a classical description is invalid. We argue that the duration of classicality of inhomogeneous condensates is shorter than that of homogeneous condensates.},
doi = {10.1103/PhysRevD.97.043531},
journal = {Physical Review D},
number = 4,
volume = 97,
place = {United States},
year = {2018},
month = {2}
}
https://doi.org/10.1103/PhysRevD.97.043531
Web of Science
Figures / Tables:

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Works referencing / citing this record:
Duration of classicality of an inhomogeneous quantum field with repulsive contact self-interactions
journal, December 2019
- Arza, Ariel; Chakrabarty, Sankha S.; Enomoto, Seishi
- Physical Review D, Vol. 100, Issue 12
Figures / Tables found in this record: