59 research outputs found
Towards a High-Speed Quantum Random Number Generator
Randomness is of fundamental importance in various fields, such as cryptography, numerical simulations, or the gaming industry. Quantum physics, which is fundamentally probabilistic, is the best option for a physical random number generator. In this article, we will present the work carried out in various projects in the context of the development of acommercial and certified high speed random number generator
Towards a standard procedure for the measurement of the multi-photon component in a CW telecom heralded single-photon source
Single-photon sources are set to be a fundamental tool for metrological
applications as well as for quantum information related technologies. Because
of their upcoming widespread dissemination, the need for their characterization
and standardization is becoming of the utmost relevance. Here, we illustrate a
strategy to provide a quantitative estimate of the multi-photon component of a
single-photon source, showing the results achieved in a pilot study for the
measurement of the second order autocorrelation function of a
low-noise CW heralded single-photon source prototype (operating at telecom
wavelength nm) realized in INRiM. The results of this pilot
study, involving PTB, NPL and INRiM, will help to build up a robust and
unambiguous procedure for the characterization of the emission of a
single-photon source
Feasibility study towards comparison of the g (2)(0) measurement in the visible range
This work reports on the pilot study, performed by INRIM, NPL and PTB, on the
measurement of the g^(2)(0) parameter in the visible spectral range of a test
single-photon source based on a colour centre in diamond. The development of
single-photon sources is of great interest to the metrology community as well
as the burgeoning quantum technologies industry. Measurement of the g^(2)(0)
parameter plays a vital role in characterising and understanding single-photon
emission. This comparison has been conducted by each partner individually using
its own equipment at INRIM laboratories, which were responsible for the
operation of the sourc
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