System–Reservoir Interactions

作者: Miguel Orszag , Miguel Orszag

DOI: 10.1007/978-3-319-29037-9_9

关键词: Excited statePlanck's lawAtomClassical mechanicsPhysicsLangevin equationCoherent statesHarmonic oscillatorMaster equationMarkov chain

摘要: Losses play an important role in physics, and general they cannot be avoided. For example, the decay of atom can described as a small or relevant system (the atom) interacting with large reservoir consisting infinite number harmonic oscillators electromagnetic modes. It appears quite surprising that starting from time-reversible dynamics, one ends up irreversible situation, such natural excited atom. Of course, we shall see this is closely related to type approximation (Markov) used.

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