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Non-Markovian quantum optical processes and pseudomodes
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DOI：10.1002/1521-3978(200110)49:10/11<927::AID-PROP927>3.0.CO;2-F.png)
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摘要
En 中文
Non-Markovian behaviour in atomic systems coupled to a structured reservoir of quantum EM field modes, such as in high Q cavities, is treated using a quasimode description, and the pseudo mode theory for single quantum reservoir excitations is obtained via Fano diagonalisation. The atomic transitions are coupled to a discrete set of (cavity) quasimodes, which are also coupled to a continuum set of (external) quasimodes with slowly varying coupling constants. Each pseudomode corresponds to a cavity quasimode, and the original reservoir structure is obtained in expressions for the equivalent atom-true mode coupling constants. Cases of multiple excitation of the reservoir are now treatable via Markovian master equations for the atom-discrete quasimode system.
Keyword:
WAVE-FUNCTION APPROACH
PHOTONIC BAND-EDGE
MACROSCOPIC CANONICAL QUANTIZATION
RESONANCE FLUORESCENCE
SPONTANEOUS EMISSION
MASTER-EQUATIONS
CAVITY
LASER
DECAY
ATOM
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