The simplicity of a question, such as wondering whether or not correlations characterize a certain system, collides with the experimental difficulty of accessing such information. Here we present a low-demanding experimental approach that refers to the use of a metrology scheme to obtain a conservative estimate of the strength of frequency correlations. Our test bed is the widespread case of a photon pair produced per downconversion. The theoretical architecture used to put the correlation degree on a quantitative ground is also described.
Assessing frequency correlation through a distinguishability measurement / Sbroscia, Marco; Gianani, Ilaria; Roccia, Emanuele; Cimini, Valeria; Mancino, Luca; Aloe, Paolo; Barbieri, Marco. - In: OPTICS LETTERS. - ISSN 0146-9592. - 43:16(2018), pp. 4045-4048. [10.1364/OL.43.004045]
Assessing frequency correlation through a distinguishability measurement
Sbroscia, Marco;Gianani, Ilaria;Roccia, Emanuele;Cimini, Valeria;Mancino, Luca;Barbieri, Marco
2018
Abstract
The simplicity of a question, such as wondering whether or not correlations characterize a certain system, collides with the experimental difficulty of accessing such information. Here we present a low-demanding experimental approach that refers to the use of a metrology scheme to obtain a conservative estimate of the strength of frequency correlations. Our test bed is the widespread case of a photon pair produced per downconversion. The theoretical architecture used to put the correlation degree on a quantitative ground is also described.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
