Two-photon detuning and decoherence in cavity electromagnetically induced transparency for quantized fields
Abstract
The interaction of a quantized field with three-level atoms in Λ configuration inside a two-mode cavity is analyzed in the small-noise approximation. The atoms are in a two-photon detuning with respect to the carriers of the field. We calculate the stationary quadrature noise spectrum of the field outside the cavity in the case where the input probe field is a squeezed state and the input pump field is a coherent state. The mean value of the field is unaltered in all the analysis: the atoms shows electromagnetically induced transparency. The effect of the atoms’ base level decoherence in the cavity output field is also studied. It is found that the output field is very sensitive to two-photon detuning.
- Publication:
-
Physical Review A
- Pub Date:
- January 2008
- DOI:
- 10.1103/PhysRevA.77.013821
- arXiv:
- arXiv:0801.3457
- Bibcode:
- 2008PhRvA..77a3821B
- Keywords:
-
- 42.50.Gy;
- 42.50.Lc;
- 42.50.Ar;
- 42.50.Pq;
- Effects of atomic coherence on propagation absorption and amplification of light;
- electromagnetically induced transparency and absorption;
- Quantum fluctuations quantum noise and quantum jumps;
- Photon statistics and coherence theory;
- Cavity quantum electrodynamics;
- micromasers;
- Quantum Physics
- E-Print:
- 8 pages