Scalar quantum fields in cosmologies with 2+1 spacetime dimensions
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-Lemaître-Robertson-Walker universes with d=2+1 spacetime dimensions. In particular, we investigate particl...
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| Main Authors: | , , , , |
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| Format: | Article (Journal) |
| Language: | English |
| Published: |
24 May 2022
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| In: |
Physical review
Year: 2022, Volume: 105, Issue: 10, Pages: 1-18 |
| ISSN: | 2470-0029 |
| DOI: | 10.1103/PhysRevD.105.105020 |
| Online Access: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1103/PhysRevD.105.105020 Verlag, lizenzpflichtig, Volltext: https://link.aps.org/doi/10.1103/PhysRevD.105.105020 
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| Author Notes: | Natalia Sánchez-Kuntz, Álvaro Parra-López, Mireia Tolosa-Simeón, Tobias Haas, and Stefan Floerchinger |
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| 520 | |a 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-Lemaître-Robertson-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. | ||
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