Vacuum Fluctuations as Quantum Probes in FRWL space-times
Sergio Zerbini
TL;DR
This paper investigates how vacuum fluctuations of a scalar field can serve as quantum probes to understand the structure of FRWL space-times, including black holes and de Sitter space.
Contribution
It introduces a regularization and renormalization method for analyzing vacuum fluctuations in FRWL space-times and applies it to black holes and de Sitter models.
Findings
Vacuum fluctuations can effectively probe spacetime features.
The proposed regularization method addresses divergences in calculations.
Applications demonstrate the method's utility in different cosmological models.
Abstract
Vacuum fluctuations related a massless conformally coupled scalar field in Friedman-Robertson-Walker-Lemaitre (FRWL) space-times are investigated. Point-slitting regularization is used and a specific renormalization proposal is discussed. Applications to generic black holes and FRWL form of the de Sitter space-time are presented.
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Taxonomy
TopicsBlack Holes and Theoretical Physics · Cosmology and Gravitation Theories · Quantum Electrodynamics and Casimir Effect