Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2011-09-02
JHEP 08(2011)137
Physics
High Energy Physics
High Energy Physics - Theory
15 pages, no figures, Revtex
Scientific paper
10.1007/JHEP08(2011)137
We examine the Hawking effect by studying the asymptotic entanglement of two mutually independent two-level atoms placed at a fixed radial distance outside a Schwarzschild black hole in the framework of open quantum systems. We treat the two-atom system as an open quantum system in a bath of fluctuating quantized massless scalar fields in vacuum and calculate the concurrence, a measurement of entanglement, of the equilibrium state of the system at large times, for the Unruh, Hartle-Hawking and Boulware vacua respectively. We find, for all three vacuum cases, that the atoms turn out to be entangled even if they are initially in a separable state as long as the system is not placed right at the even horizon. Remarkably, only in the Unruh vacuum, will the asymptotic entanglement be affected by the backscattering of the thermal radiation off the space-time curvature. The effect of the back scatterings on the asymptotic entanglement cancels in the Hartle-Hawking vacuum case.
Hu Jiawei
Yu Hongwei
No associations
LandOfFree
Entanglement generation outside a Schwarzschild black hole and the Hawking effect does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Entanglement generation outside a Schwarzschild black hole and the Hawking effect, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Entanglement generation outside a Schwarzschild black hole and the Hawking effect will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-687316