Phys. Rev. A 65, 042326 (2002) [7 pages]Dynamics of entanglement for coherent excitonic states in a system of two coupled quantum dots and cavity QEDSee Also: Erratum Received 9 August 2001; published 10 April 2002 The dynamics of the entanglement for coherent excitonic states in the system of two, coupled, large semiconductor quantum dots (R/aB≫1) mediated by a single-mode cavity field is investigated. Maximally entangled coherent excitonic states can be generated by cavity field initially prepared in odd coherent state. The entanglement of the excitonic coherent states between two dots reaches maximum when no photon is present in the cavity. The effects of the zero-temperature environment on the entanglement of excitonic coherent state are also studied using the concurrence for two subsystems of the excitons. © 2002 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevA.65.042326
DOI:
10.1103/PhysRevA.65.042326
PACS:
03.67.-a, 71.10.Li, 71.35.-y, 73.21.-b
See AlsoErratum: Yu-xi Liu, Şahin Kaya Özdemir, Masato Koashi, and Nobuyuki Imoto, Erratum: Dynamics of entanglement for coherent excitonic states in a system of two coupled quantum dots and cavity QED [Phys. Rev. A 65, 042326 (2002)], Phys. Rev. A 67, 019902 (2003). |
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