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- W2057244384 abstract "With the development of quantum thermodynamics it has been shown that relaxation to thermal equilibrium and with it the concept of heat flux may emerge directly from quantum mechanics. This happens for a large class of quantum systems if embedded into another quantum environment. In this paper, we discuss the complementary question of the emergence of work flux from quantum mechanics. We introduce and discuss two different methods to assess the work source quality of a system, one based on the generalized factorization approximation, the other based on generalized definitions of work and heat. By means of those methods, we show that small quantum systems can, indeed, act as work reservoirs. We illustrate this behavior for a simple system consisting of a spin coupled to an oscillator and investigate the effects of two different interactions on the work source quality. One case will be shown to allow for a work source functionality of arbitrarily high quality." @default.
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- W2057244384 date "2010-02-10" @default.
- W2057244384 modified "2023-10-18" @default.
- W2057244384 title "Work exchange between quantum systems: The spin-oscillator model" @default.
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- W2057244384 doi "https://doi.org/10.1103/physreve.81.021118" @default.
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