Quantum correlator outside a Schwarzschild black hole

Abstract

We calculate the quantum correlator in Schwarzschild black hole space-time. We perform the calculation for a scalar field in three different quantum states: Boulware, Unruh and Hartle-Hawking, and for points along a timelike circular geodesic. The results show that the correlator presents a global fourfold singularity structure, which is state-independent. Our results also show the different correlations in the three different quantum states arising in-between the singularities.

7 pages, 4 figures. Version 2: as in the published version in Phys. Lett. B

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• Self-Force Calculations with Matched Expansions and Quasinormal Mode Sums
• Caustic echoes from a Schwarzschild black hole
• Pade Approximants of the Green Function in Spherically Symmetric Spacetimes
• High-order tail in Kerr spacetime

Cited by in corpus (1)

• Gravitational waves from bodies orbiting the Galactic Center black hole and their detectability by LISA