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Cavity-enhanced two-photon interference using remote quantum dot sources
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DOI：10.1103/PhysRevB.92.161302.png)
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Abstract
En 中文
Quantum dots in cavities have been shown to be very bright sources of indistinguishable single photons. Yet the quantum interference between two such bright quantum dot sources, a critical step for photon-based quantum computation, still needs to be investigated. Here, we report on such a measurement, taking advantage of a deterministic fabrication of the devices. We show that cavity quantum electrodynamics can efficiently improve the quantum interference between remote quantum dot sources: Poorly indistinguishable photons can still interfere with good contrast with high quality photons emitted by a source in the strong Purcell regime. Our measurements and calculations show that cavity quantum electrodynamics is a powerful tool for interconnecting several quantum dot devices.
Keywords:
ENTANGLED PHOTON PAIRS
SINGLE PHOTONS
SPIN
DEVICE
INDISTINGUISHABILITY
GENERATION
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