Spectral correlations in resonance fluorescence.

摘要: We study the photon correlations between output of two spectral filters set within fluorescence triplet a two-state atom. The time uncertainty arising from resolution implies possible interference opposite orders emission, contributing to same detection order. Furthermore, fluorescent emission is quantum-mechanical process, and successive emissions in different components do not commute. correlation functions are affected both by memory noncommutativity emissions. When filter bandwidths larger than widths components, this only modifies short-time behavior photons components. For narrow filters, entire function dominated memory-time effects. Positive (bunching) arise when at frequency, also they positioned symmetrically sides driving frequency.