Acta Optica Sinica, Volume. 32, Issue 2, 227001(2012)
Entanglement Properties in the System of Atoms Interacting with Coupled Cavities via a Two-Photon Hopping Interaction
Two identical cavities, each containing one two-level atom, coupled via a two-photon hopping interaction are considered. The evolution of the state vector of the system is given. Negativity is used to quantify the degree of entanglement. By means of numerical calculations, the temporal evolution in the entanglement between atoms, between cavities, as well as between the atom and the local cavity mode are investigated. The influence of cavity-cavity coupling coefficient on the entanglement is also discussed. The results show that the entanglement between atoms is strengthened, and that between cavities and that between the atom and the local cavity mode are weakened with the increase of cavity-cavity coupling coefficient.
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Lu Daoming. Entanglement Properties in the System of Atoms Interacting with Coupled Cavities via a Two-Photon Hopping Interaction[J]. Acta Optica Sinica, 2012, 32(2): 227001
Category: Quantum Optics
Received: Aug. 16, 2011
Accepted: --
Published Online: Dec. 16, 2011
The Author Email: Daoming Lu (daominglu79@hotmail.com)