Universität zu Köln

Sanchez-Kuntz, Natalia, Parra-Lopez, Alvaro ORCID: 0000-0001-5981-7195, Tolosa-Simeon, Mireia ORCID: 0000-0003-4032-0132, Haas, Tobias ORCID: 0000-0003-1477-9855 and Floerchinger, Stefan (2022). Scalar quantum fields in cosmologies with 2+1 spacetime dimensions. Phys. Rev. D, 105 (10). COLLEGE PK: AMER PHYSICAL SOC. ISSN 2470-0029

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Abstract

Motivated by the possibility to use Bose-Einstein condensates as quantum simulators for spacetime curvature, we study a massless relativistic scalar quantum field in spatially curved Friedmann-Lema??treRobertson-Walker universes with d = 2 + 1 spacetime dimensions. In particular, we investigate particle production caused by a time-dependent background geometry, by means of the spectrum of fluctuations and several two-point field correlation functions. We derive new analytical results for several expansion scenarios.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Sanchez-Kuntz, Natalia UNSPECIFIED UNSPECIFIED UNSPECIFIED Parra-Lopez, Alvaro UNSPECIFIED orcid.org/0000-0001-5981-7195 UNSPECIFIED Tolosa-Simeon, Mireia UNSPECIFIED orcid.org/0000-0003-4032-0132 UNSPECIFIED Haas, Tobias UNSPECIFIED orcid.org/0000-0003-1477-9855 UNSPECIFIED Floerchinger, Stefan UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-685901
DOI:	10.1103/PhysRevD.105.105020
Journal or Publication Title:	Phys. Rev. D
Volume:	105
Number:	10
Date:	2022
Publisher:	AMER PHYSICAL SOC
Place of Publication:	COLLEGE PK
ISSN:	2470-0029
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language PARTICLE CREATION; WORLD-STRUCTURE; KINEMATICS; CURVATURE; UNIVERSE; ENTROPY Multiple languages Astronomy & Astrophysics; Physics, Particles & Fields Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/68590