Multilayer Anisotropic Thin Film with a Twist
ISSN: 1829-1171
Submitted: 2026-07-17
Natural Sciences, Physics, 2026
VACUUM FLUCTUATIONS IN COSMOLOGICAL MODELS WITH COMPACTIFIED DIMENSIONS
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Submitted: 2025-02-27
© 2026 by author(s) and The Gufo Inc.
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(CC BY-NC 4.0).
Abstract
We study quantum effects of scalar fields in cosmological models of Friedman–Robertson–Walker with a power-low scale factor and spatial topology R2time(Sl)q. Recurrent formulae are obtained for positive-frequency Wightman function, vacuum expectation values of the field squared and energy density.