Cavity-funneled generation of indistinguishable single photons from strongly dissipative quantum emitters
arXiv:1501.00931 · doi:10.1103/PhysRevLett.114.193601
Abstract
We investigate theoretically the generation of indistinguishable single photons from a strongly dissipative quantum system placed inside an optical cavity. The degree of indistinguishability of photons emitted by the cavity is calculated as a function of the emitter-cavity coupling strength and the cavity linewidth. For a quantum emitter subject to strong pure dephasing, our calculations reveal that an unconventional regime of high indistinguishability can be reached for moderate emittercavity coupling strengths and high quality factor cavities. In this regime, the broad spectrum of a dissipative quantum system is funneled into the narrow lineshape of a cavity. The associated efficiency is found to greatly surpass spectral filtering effects. Our findings open the path towards on-chip scalable indistinguishable-photon emitting devices operating at room temperature.
arXiv commentMain paper (6 pages, 3 figures)+ supplemental materials (4 pages)
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