Physics – Quantum Physics
Scientific paper
2010-07-09
Physics
Quantum Physics
11 pages, 6 figures, submitted to PRA
Scientific paper
Motivated by recent experiments, we study four-wave-mixing in an atomic double-{\Lambda} system driven by a far-detuned pump. Using the Heisenberg-Langevin formalism, and based on the microscopic properties of the medium, we calculate the classical and quantum properties of seed and conju- gate beams beyond the linear amplifier approximation. A continuous variable approach gives us access to relative-intensity noise spectra that can be directly compared to experiments. Restricting ourselves to the cold-atom regime, we predict the generation of quantum-correlated beams with a relative-intensity noise spectrum well below the standard quantum limit (down to -6 dB). Moreover entanglement between seed and conjugate beams measured by an inseparability down to 0.25 is expected. This work opens the way to the generation of entangled beams by four-wave mixing in a cold atomic sample.
Arimondo Ennio
Coudreau Thomas
Dubessy Romain
Glorieux Quentin
Guibal Samuel
No associations
LandOfFree
Double-lambda microscopic model for entangled light generation by four-wave-mixing does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Double-lambda microscopic model for entangled light generation by four-wave-mixing, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Double-lambda microscopic model for entangled light generation by four-wave-mixing will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-645483