2010/08/31 by C. Lazarou, B. M. Garraway, J. Piilo +1 · 1 citation
Physics and Astronomy · #quant-ph
paper · pdf · doi:10.1088/0953-4075/44/6/065505
published as J. Phys. B: At. Mol. Opt. Phys. 44 065505 (2011) · 9 pages, 4 figure
arxiv created 2011/03/22 · arxiv updated 2011/03/23
We study a single two-level atom interacting with a reservoir of modes defined by its reservoir structure function. Within this framework we are able to define a density of entanglement involving a continuum of reservoir modes. The density of entanglement is derived for a system with a single excitation by taking a limit of the global entanglement. Utilizing the density of entanglement we quantify the entanglement between the atom and the modes, and also between the reservoir modes themselves.