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4 papers · 2 filters
Ultraviolet-regularized power spectrum without infrared distortions in cosmological spacetimes
Antonio Ferreiro, Francisco Torrenti
We reexamine the regularization of the two-point function of a scalar field in a Friedmann-Lemaitre-Robertson-Walker (FLRW) spacetime. Adiabatic regularization provides a set of su…
Unruh-DeWitt detectors in cosmological spacetimes
Aindriú Conroy
We analyse the response and thermal behaviour of an Unruh-DeWitt detector as it travels through cosmological spacetimes, with special reference to the question of how to define sur…
Spin Hall effects and the localization of massless spinning particles
Abraham I. Harte, Marius A. Oancea
The spin Hall effects of light represent a diverse class of polarization-dependent physical phenomena involving the dynamics of electromagnetic wave packets. In a medium with an in…
A mode-sum prescription for the renormalized stress energy tensor on black hole spacetimes
Peter Taylor, Cormac Breen, Adrian Ottewill
In this paper, we describe an extremely efficient method for computing the renormalized stress-energy tensor of a quantum scalar field in spherically-symmetric black hole spacetime…