Entanglement amplification in a nondegenerate three-level cascade laser

Journal Article · Sun Oct 15 04:00:00 EDT 2006 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.74.043816· OSTI ID:20863979

Tesfa, Sintayehu ^[1]

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1. Physics Department, Addis Ababa University, P. O. Box 1176, Addis Ababa (Ethiopia)

We analyze a nondegenerate three-level cascade laser coupled to a two-mode vacuum reservoir employing the stochastic differential equations associated with the normal ordering. We study the squeezing properties and entanglement amplification of the cavity radiation. We also calculate the correlation of the photon numbers and the fluctuations of the intensity difference. It turns out that the generated light exhibits a two-mode squeezing and entanglement when initially there are more atoms in the lower level. Moreover, a strong correlation between photon numbers along with a significant fluctuation in the intensity difference is found.

• OSTI ID: 20863979
• Journal Information: Physical Review. A, Journal Name: Physical Review. A Journal Issue: 4 Vol. 74; ISSN 1050-2947; ISSN PLRAAN
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
AMPLIFICATION
ATOMS
CORRELATIONS
DIFFERENTIAL EQUATIONS
FLUCTUATIONS
PHOTONS
QUANTUM ENTANGLEMENT
STOCHASTIC PROCESSES
VISIBLE RADIATION