Open AccessGeneration of narrowband triphoton frequency-entangled states via cold-atom ensembles
Author(s) -
Rui Liu,
Yu Ya-Fei,
Zhiming Zhang
Publication year - 2014
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.63.144203
Subject(s) - narrowband , physics , coincidence , electromagnetically induced transparency , atom (system on chip) , quantum mechanics , mixing (physics) , statistical physics , atomic physics , optics , computer science , medicine , alternative medicine , pathology , embedded system
We propose a scheme for the generation of narrowband triphoton frequency-entangled states. This scheme uses the four-wave mixing and the electromagnetically induced transparency in two cold-atom ensembles. By using the second-order perturbation theory, some relevant calculations are performed. By analyzing the coincidence-counting rate, we study the correlation and nonclassical properties of these states, and find that they have a similar feature to that of the discrete-variable W state, and can show the antibunching effect.