The calculation of autocorrelation functions represents a routinely used tool to characterise quantum states of light. In this paper, we evaluate the g(2) function for detected photons in the case of mesoscopic multi-mode twin-beam states in order to fully investigate their statistical properties starting from measurable quantities. Moreover, we show that the second-order autocorrelation function is also useful to estimate the spurious effects affecting the employed Silicon-photomultiplier detectors.

Autocorrelation functions: a useful tool for both state and detector characterisation

Chesi, Giovanni
;
Allevi, Alessia;
2019

Abstract

The calculation of autocorrelation functions represents a routinely used tool to characterise quantum states of light. In this paper, we evaluate the g(2) function for detected photons in the case of mesoscopic multi-mode twin-beam states in order to fully investigate their statistical properties starting from measurable quantities. Moreover, we show that the second-order autocorrelation function is also useful to estimate the spurious effects affecting the employed Silicon-photomultiplier detectors.
autocorrelation functions, photon-statistics, photodetectors, parametric downconversion.
Chesi, Giovanni; Allevi, Alessia; Bondani, Maria
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11383/2087707
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