Scientific Results

Efficient generation of heralded narrowband color-entangled states

Year: 2020

Authors: Zhang XJ., Wu JH., La Rocca GC., Artoni M.

Autors Affiliation: Northeast Normal Univ, Sch Phys, Changchun 130024, Peoples R China; Scuola Normale Super Pisa, Pisa, Italy; CNISM, Pisa, Italy; European Lab Nonlinear Spect, Sesto Fiorentino, Italy; Univ Brescia, Dept Engn & Informat Technol, Brescia, Italy;Ist Natl Ottica INO CNR, Sesto Fiorentino, FI, Italy

Abstract: We show that narrowband two-color entangled single Stokes photons can be generated in a ultra-cold atoms sample via selective excitation of two spontaneous four-wave mixing (SFWM) processes. Under certain circumstances, the generation, heralded by the respective common anti-Stokes photon, is robust against losses and phase-mismatching and is remarkably efficient owing to balanced resonant enhancement of the two four-wave mixing processes in a regime of combined induced transparency. Maximally color-entangled states can be easily attained by adjusting the detunings of the external couplings and driving fields, even when these are quite weak. (C) 2020 Optical Society of America under the terms of the OSA Open Access Publishing Agreement

Journal/Review: OPTICS EXPRESS

Volume: 28 (21)      Pages from: 31076  to: 31092

DOI: 10.1364/OE.401551

Connecting to view paper tab on IsiWeb: Click here

This site uses cookies. If you decide to continue browsing we consider that you accept their use. For more information about cookies and how to delete them please read our Info Policy on cookies use.
Read more