Quantum detectors in generic non flat FLRW space-times
arXiv:1505.00998 · doi:10.1007/s10773-015-2902-x
Abstract
A quantum field theoretical approach, in which a quantum probe is used to investigate the properties generic non-flat FLRW space-times is discussed. The probe is identified with a conformally coupled massless scalar field defined on a space-time with horizon and the procedure to investigate the local properties is realized by the use of Unruh-DeWitt detector and by the evaluation of the regularized quantum fluctuations. In the case of de Sitter space, the coordinate independence of our results is checked, and the Gibbons-Hawking temperature is recovered. A possible generalization to the electromagnetic probe is also briefly indicated.
!6 pages
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Cited by in corpus (5)
- Schrödinger's cat for de Sitter spacetime
- Thermality, causality and the quantum-controlled Unruh-deWitt detector
- Decoherence and thermalization of Unruh-DeWitt detector in arbitrary dimensions
- Effective photon mass from black-hole formation
- Energy change and Landauer's principle in the interaction between qubit and quantum field theory