Turbulent single-photon propagation in the Canary optical link

Capraro, Ivan; Tomaello, Andrea; Dall’Arche, Alberto; Gerlin, Francesca; Herbst, Thomas; Ursin, Rupert; Vallone, Giuseppe; Villoresi, Paolo

doi:10.1063/1.4903114

Cited by 1 publication

(1 citation statement)

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“…Typical photon counting statistics are Poissonian in nature. However due to atmospheric fluctuations in long distance links, the distribution is better modeled by the convolution of a Poissonian and a Log Normal Distribution (LND) [8]. While the error of a Poissonian statistical sample scales as √ N for N events, that of a LND scales as s i N , where s i is the atmospheric scintillation index.…”

Section: Fluctuation Of Count Ratesmentioning

confidence: 99%

Space QUEST mission proposal: experimentally testing decoherence due to gravity

Joshi¹,

Pienaar²,

Ralph³

et al. 2018

New J. Phys.

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Models of quantum systems on curved space-times lack sufficient experimental verification. Some speculative theories suggest that quantum correlations, such as entanglement, may exhibit different behavior to purely classical correlations in curved space. By measuring this effect or lack thereof, we can test the hypotheses behind several such models. For instance, as predicted by Ralph et al [5] and Ralph and Pienaar [1], a bipartite entangled system could decohere if each particle traversed through a different gravitational field gradient. We propose to study this effect in a ground to space uplink scenario. We extend the above theoretical predictions of Ralph and coworkers and discuss the scientific consequences of detecting/failing to detect the predicted gravitational decoherence. We present a detailed mission design of the European Space Agency's Space QUEST (Space-Quantum Entanglement Space Test) mission, and study the feasibility of the mission scheme.

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Section: Fluctuation Of Count Ratesmentioning

confidence: 99%