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The quantum trajectory theory of photon scattering in quantum optics is reviewed. Two features of the theory which bear closely on issues of interpretation in quantum mechanics are emphasized: (1) there exist different unravellings of a scattering process which reveal complementary aspects of the dynamics in the interaction region, and (2) through the making of records via a stochastic implementation...
Predictions of self-oscillation and chaos in optical bistability in a ring cavity are reviewed. Each is derived as a special case from a single unifying stability analysis. Three other systems which also show self-oscillations and chaos are discussed. Each comprises two ring-cavity modes interacting via a nonlinear medium. Nonlinear couplings are provided by a J=1/2 to J=1/2 transition, a two-photon...
We revisit the “trapping states” of the micromaser from a quantum trajectory point of view, treating many simultaneously interacting atoms and a random atomic beam. Previous studies of trapping states are severely restricted by simplifying assumptions. We show that sub-Poissonian maser fields are generated still after the principal restrictions are lifted.
We investigate theoretically the modification of atomic spontaneous emission in a two-way cascaded cavity QED system consisting of microtoroidal resonators connected via an optical fiber. Under appropriate conditions, atoms coupled to different resonators can undergo either superradiant decay or coherent dipole-dipole interaction.
We consider models of open quantum systems in which the system couples to the reservoir at two spatial locations, effecting a feedback loop. In particular, we consider two different models for the interaction of a harmonic oscillator with a feedback reservoir: one with the standard quantum-optical approximations, and one without. The former approach yields the surprising result that damping of the...
We discuss the prospects of exploiting coherently driven light-matter interactions in semiconductor quantum dot — cavity systems. Regimes of pulse-triggered single photons and steady-state exciton inversion are introduced, and a connection to recent experiments with planar photonic crystals and micropillar cavities is made.
Two-mode cavity QED allows the observation of ground-state quantum Zeeman beats with the conditional measurement of the intensity. Continuous π excitation produces quantum jumps that cause light shifts and induce decoherence.
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