Casimir-Polder-like force on an atom outside a Schwarzschild black hole

Details Casimir-Polder-like force on an atom outside a Schwarzschild black hole Casimir-Polder-like force on an atom outside a Schwarzschild black hole

2011-09-22

arxiv.org/abs/1109.4704v2

Physical Review A 84, 042103 (2011)

Physics

Quantum Physics

typos corrected, version to be published in PRA

Scientific paper

10.1103/PhysRevA.84.042103

We calculate, in the framework of open quantum systems, the ground state energy-level shift for a static two-level atom outside a spherically symmetric black hole in interaction with fluctuating massless scalar fields in the Boulware and Unruh vacuums. We find that the energy-level shift is position-dependent and thus gives rise to a force on the atom besides the classical gravitational force. For the case of the Boulware vacuum which represents a star that has not collapsed through its event horizon, this force is attractive near the horizon and is repulsive far away from the black hole with a behavior of $r^{-3}$ . For the case of the Unruh vacuum which represents a radiating black hole, we find that the contribution to the Casimir-Polder-like force due to the presence of Hawking radiation is always attractive and, remarkably, this attractive force diverges at the event horizon.

Affiliated with

Also associated with

No associations

Rating

Casimir-Polder-like force on an atom outside a Schwarzschild black hole 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 Casimir-Polder-like force on an atom outside a Schwarzschild black hole, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Casimir-Polder-like force on an atom outside a Schwarzschild black hole will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-262251