Spin decoherence by spacetime curvature

Details Spin decoherence by spacetime curvature Spin decoherence by spacetime curvature

2003-12-08

arxiv.org/abs/quant-ph/0312064v3

J.Phys. A38 (2005) 2029-2037

Physics

Quantum Physics

13 pages, 2 figures

Scientific paper

10.1088/0305-4470/38/9/013

A decoherence mechanism caused by spacetime curvature is discussed. The spin
state of a particle is shown to decohere if only the particle moves in a curved
spacetime. In particular, when a particle is near the event horizon of a black
hole, an extremely rapid spin decoherence occurs for an observer who is static
in a Killing time, however slow the particle's motion is.

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