Physics – Mathematical Physics
Scientific paper
2010-01-22
Phys. Lett. A 374, 3726 (2010)
Physics
Mathematical Physics
8 pages, 1 figure, introduction extended
Scientific paper
This paper studies composite quantum systems, like atom-cavity systems and coupled optical resonators, in the absence of external driving by resorting to methods from quantum field theory. Going beyond the rotating wave approximation, it is shown that the usually neglected counter-rotating part of the Hamiltonian relates to the entropy operator and generates an irreversible time evolution. The vacuum state of the system is shown to evolve into a generalized coherent state exhibiting entanglement of the modes in which the counter-rotating terms are expressed. Possible consequences at observational level in quantum optics experiments are currently under study.
Beige Almut
Capolupo Antonio
Giudice Emilio Del
Kurcz Andreas
Vitiello Giuseppe
No associations
LandOfFree
Rotating wave approximation and entropy 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 Rotating wave approximation and entropy, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Rotating wave approximation and entropy will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-655484