Imprints of Spacetime Topology in the Hawking-Unruh Effect

Abstract

The Unruh and Hawking effects are investigated on certain families of topologically non-trivial spacetimes using a variety of techniques. First we present the Bogolubov transformation between Rindler and Minkowski quantizations on two flat spacetimes with topology ${\mathbb{R}}^3\times S^1$ (M_0 and M_-) for massive Dirac spinors. The two inequivalent spin structures on each are considered. Results show modifications to the Minkowski space Unruh effect. This provides a flat space model for the Hawking effect on Kruskal and RP^3 geon black hole spacetimes which is the subject of the rest of this part. Secondley we present the expectation values of the stress tensor for massive scalar and spinor fields on $M_0$ and $M_{-}$, and for massive scalar fields on Minkowski space with a single infinite plane boundary, in the Minkowski-like vacua. Finally we investigate particle detector models. We investigate Schlicht's regularization of the Wightman function and extend it to an arbitrary spacetime dimension, to quotient spaces of Minkowski space, to non-linear couplings, to a massless Dirac field, and to conformally flat spacetimes. Secondly we present some detector responses, including the time dependent responses of inertial and uniformly accelerated detectors on $M_{-}$ and $M$ with boundary with motion perpendicular to the boundary. Responses are also considered for static observers in the exterior of the RP^3 geon and comoving observers in RP^3 de Sitter space, via those in the associated GEMS.

arXiv commentPhD Thesis, 205 pages

References in corpus (1)

• The Creation of Particles in an Expanding Universe

Cited by in corpus (18)

• The Unruh effect and its applications
• How often does the Unruh-DeWitt detector click? Regularisation by a spatial profile
• Spacetime structure and vacuum entanglement
• Then again, how often does the Unruh-DeWitt detector click if we switch it carefully?
• Relativistic Quantum Information in Detectors-Field Interactions
• Onset and decay of the 1+1 Hawking-Unruh effect: what the derivative-coupling detector saw
• Static, stationary and inertial Unruh-DeWitt detectors on the BTZ black hole
• Radiative processes of uniformly accelerated entangled atoms
• Unruh-DeWitt detector's response to fermions in flat spacetimes
• Quantum signatures of black hole mass superpositions
• How often does the Unruh-DeWitt detector click beyond four dimensions?
• Entanglement Dynamics of Detectors in an Einstein Cylinder
• On the Unruh effect in de Sitter space
• Particle detectors in curved spacetime quantum field theory
• Directional dependence of the Unruh effect for spatially extended detectors
• Excited by a quantum field: Does shape matter?
• Radiation from a receding mirror: Unruh-DeWitt detector distinguishes a Dirac fermion from a scalar boson
• Quantum kicks near a Cauchy horizon