Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1862552 | Physics Letters A | 2012 | 6 Pages |
Abstract
We have investigated the effect of counter-rotating terms on the dynamics of entanglement and quantum discord between two identical atoms interacting with a lossy single mode cavity field for a system initially in a vacuum state. The counter-rotating terms are found to lead to steady states in the long-time limit which can have high quantum discord, but have no entanglement. The effect of cavity decay rate on this steady-state quantum discord has been also investigated, surprisingly, the increase in cavity decay rate is found to enhance the steady-state quantum discord.
► The effects of counter-rotating terms on quantum discord. ► Constant quantum discord is explored. ► Quantum discord increases with the increase in cavity decay.
Keywords
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Physics and Astronomy (General)
Authors
Ferdi Altintas, Resul Eryigit,