Titlebook: An Open Systems Approach to Quantum Optics; Lectures Presented a Howard Carmichael Book 1993 Springer-Verlag Berlin Heidelberg 1993 Heisenb

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Quantum Trajectories I,thod is limited. It is limited ultimately by the fact that at a fundamental level, quantum dynamics does not fit the classical statistics mold. It is actually rare that an operator master equation is converted into a Fokker-Planck equation under the quantum-classical correspondence. Most often the s

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0940-7677 LB lecture notes contain my first serious atte~pt to give a complete account of the ideas and their potential applications. I am grateful to Professor Paul Mand978-3-662-13926-4978-3-540-47620-7Series ISSN 0940-7677

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https://doi.org/10.1007/978-3-476-03905-7evolution of complex amplitudes, the coefficients in a superposition of states. With its emphasis on coherence, laser dynamics involves the complex amplitudes; to understand the properties of laser light something more than a calculation of rates for the incoherent emission and absorption of photons

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,Medienleistungen und „politische Kultur“,respondence to the fluctuating signals obtained by monitoring a single quantum system (not an ensemble) in the laboratory. They can be analyzed like experimental data — for a stationary process, by averaging in time; the time averages reproduce the usual quantum-mechanical average.

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,Medienleistungen und „politische Kultur“,rstanding of shot noise reduction in squeezed light measurements. Prom the point of view of semiclassical photoelectric detection theory, shot noise reduction is a real riddle. We will see how the quantum trajectory approach solves this riddle in a rather simple way, using the collapse of the wavefu