Quantum fields on closed time-like curves

Details Quantum fields on closed time-like curves Quantum fields on closed time-like curves

2011-10-17

arxiv.org/abs/1110.3582v2

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

12 pages, 10 figures. Minor corrections, added references

Scientific paper

Recently, there has been much interest in the evolution of quantum particles on closed time-like curves (CTCs). However, such models typically assume point-like particles with only two degrees of freedom - a very questionable assumption given the relativistic setting of the problem. We show that it is possible to generalise the Deutsch model of CTCs to fields using the equivalent circuit formalism. We give examples for coherent, squeezed and single-photon states interacting with the CTC via a beamsplitter. The model is then generalised further to account for the smooth transition to normal quantum mechanics as the CTC becomes much smaller than the size of the modes interacting on it. In this limit, we find that the system behaves like a standard quantum mechanical feedback loop.

Affiliated with

Also associated with

No associations

Rating

Quantum fields on closed time-like curves 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 Quantum fields on closed time-like curves, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Quantum fields on closed time-like curves will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-317298