Open AccessGeneration of continuous-variable entanglement in a two-mode four-level single-atom driven by microwave
Author(s) -
Song Ming-Yu,
Wu Yao-De
Publication year - 2013
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.62.064207
Subject(s) - quantum entanglement , microwave , physics , coherence (philosophical gambling strategy) , continuous variable , atom (system on chip) , intensity (physics) , atomic coherence , field (mathematics) , microwave cavity , quantum mechanics , coherence length , mode (computer interface) , laser , single mode optical fiber , atomic physics , optics , quantum , statistics , mathematics , computer science , pure mathematics , embedded system , superconductivity , operating system
In this paper, we discuss the generation and evolution of continuous-variable entanglement in a two-mode single-atom laser, where the atomic coherence is induced by two classical microwave fields, which drive the corresponding fine atomic transitions. The results show that the intensity of the microwave field can influence effectively the entanglement properties of the cavity field. In addition, our numerical results also show that the intensity and the period of entanglement between the two cavity modes as well as the total mean photon number of the cavity field can be increased synchronously by adjusting the corresponding frequency detuning.