Entanglement in an expanding spacetime

Details Entanglement in an expanding spacetime Entanglement in an expanding spacetime

2005-06-14

arxiv.org/abs/quant-ph/0506113v2

Phys.Lett. A359 (2006) 550-554

Physics

Quantum Physics

4 pages, no figures; I. F-S published previously under Fuentes-Guridi

Scientific paper

10.1016/j.physleta.2006.07.028

We show that a dynamical spacetime generates entanglement between modes of a quantum field. Conversely, the entanglement encodes information concerning the underlying spacetime structure, which hints at the prospect of applications of this observation to cosmology. Here we illustrate this point by way of an analytically exactly soluble example, that of a scalar quantum field on a two-dimensional asymptotically flat Robertson-Walker expanding spacetime. We explicitly calculate the entanglement in the far future, for a quantum field residing in the vacuum state in the distant past. In this toy universe, it is possible to fully reconstruct the parameters of the cosmic history from the entanglement entropy.

Affiliated with

Also associated with

No associations

Rating

Entanglement in an expanding spacetime 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 in an expanding spacetime, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Entanglement in an expanding spacetime will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-225498