Experimental nonclassicality of single-photon-added thermal light states

Year: 2007

Authors: Zavatta A., Parigi V., Bellini M.

Autors Affiliation: CNR – Istituto Nazionale di Ottica Applicata, Largo E. Fermi 6, 50125 Firenze, Italy;
Department of Physics, University of Florence, 50019 Sesto Fiorentino (FI), Italy;
LENS, Via Nello Carrara 1, 50019 Sesto Fiorentino Florence, Italy

Abstract: We report the experimental realization and tomographic analysis of quantum light states obtained by exciting a classical thermal field by a single photon. Such states, although completely incoherent, possess a tunable degree of quantumness which is here exploited to put to a stringent experimental test some of the criteria proposed for the proof and the measurement of state nonclassicality. The quantum character of the states is also given in quantum information terms by evaluating the amount of entanglement that they can produce.

Journal/Review: PHYSICAL REVIEW A

Volume: 75 (5)      Pages from: 052106-1  to: 052106-6

KeyWords:
Photons; Quantum theory; Thermal effects; Tomography, Incoherent states; Quantum characters; Quantum information; Quantum light states, Excited states
DOI: 10.1103/PhysRevA.75.052106

Citations: 215
data from “WEB OF SCIENCE” (of Thomson Reuters) are update at: 2024-05-26
References taken from IsiWeb of Knowledge: (subscribers only)
Connecting to view paper tab on IsiWeb: Click here
Connecting to view citations from IsiWeb: Click here