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2 February 2009 Quantum interference between photons emitted by independent semiconductor single-photon devices
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Many schemes for optical quantum computation and long-distance quantum communication require quantum interference between indistinguishable single-photon states generated from large numbers of independent sources. Solidstate systems allow integration of such sources on a chip. It is therefore desirable to achieve multiple solid-state singlephoton sources for practical applications. We show a promising candidate for this in the single photons generated by the radiative decay processes of excitons that are bound to isolated fluorine donor impurities in ZnSe/ZnMgSe quantum well nanostructures. Donor-bound-exciton single-photon sources typically have a narrow distribution of center wavelengths, and they overcome dipole dephasing due to their fast radiative decay time. The emitter we introduce here demonstrates these advantages, showing strong potential for allowing quantum interference between single photons emitted by independent solid-state single-photon sources.
© (2009) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Kaoru Sanaka, Alexander Pawlis, Thaddeus D. Ladd, Klaus Lischka, and Yoshihisa Yamamoto "Quantum interference between photons emitted by independent semiconductor single-photon devices", Proc. SPIE 7225, Advanced Optical Concepts in Quantum Computing, Memory, and Communication II, 72250I (2 February 2009);

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