Controlling two-photon emission from superluminal and accelerating index perturbations
نویسندگان
چکیده
Sources of photons with controllable quantum properties such as entanglement and squeezing are desired for applications in information, metrology, sensing. However, fine-grained control over these is hard to achieve, especially two-photon sources. Here, we propose a new mechanism generating entangled squeezed photon pairs using superluminal and/or accelerating modulations the refractive index medium. By leveraging time-changing dielectric media, where vacuum fluctuations electromagnetic field can be converted into pairs, show that energy- momentum-conservation multi-mode systems give rise frequency angle correlations which controlled by trajectory modulation. These radiation effects analogues Cherenkov synchrotron moving charged particles free electrons. We find particularly intriguing result synchrotron-like exhibits enable realization heralded single comb. conclude general discussion experimental viability, showing how solitons, ultrashort pulses, nonlinear waveguides may pathways realize this emission mechanism. For completeness, discuss Supplementary Information effects, sensitive local density photonic states, strongly enhanced nanostructures. As an example, propagating near surface graphene produce plasmons high efficiency, leading additional opportunities.
منابع مشابه
Quantum radiation from superluminal refractive-index perturbations.
We analyze in detail photon production induced by a superluminal refractive-index perturbation in realistic experimental operating conditions. The interaction between the refractive-index perturbation and the quantum vacuum fluctuations of the electromagnetic field leads to the production of photon pairs.
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ژورنال
عنوان ژورنال: Nature Physics
سال: 2021
ISSN: ['1745-2473', '1745-2481']
DOI: https://doi.org/10.1038/s41567-021-01428-4