Nonequilibrium entropy production in open and closed quantum systems

Sebastian Deffner (Autor)

Buch | Softcover

196 Seiten

2011
Südwestdeutscher Verlag für Hochschulschriften
978-3-8381-2685-2 (ISBN)

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Thermodynamics is a phenomenological theory describing the energy conversion of work and heat. At its origins thermodynamics was developed in order to understand and improve heat engines. In conventional thermodynamics, however, only such processes are completely describable which are slow enough to keep the system of interest in an equilibrium state with its thermal environment at all times. On the contrary, all real physical processes are accompanied by non-equilibrium phenomena. These are mathematically described with the help of the irreversible entropy production. Moreover, the modern trend of miniaturization leads to smaller and smaller devices. On short length scales thermal noise as well as quantum fluctuations become important. Thus, usual thermodynamic quantities as work and heat acquire stochastic nature. The present dissertation contributes to this prevailing field by the derivation of analytical expressions for the entropy production in open and closed quantum system far from thermal equilibrium. To this end, it was dealt with methods and approaches of statistical physics, conventional thermodynamics, quantum information theory and the theory of open quantum systems.

Deffner, SebastianDr. rer. nat. Sebastian Deffner, Dipl.-Phys.: Studium der Physik an der Universität Augsburg. Wissenschaftlicher Mitarbeiter in der Gruppe von Dr. Eric Lutz.

Erscheint lt. Verlag	2.7.2015
Sprache	deutsch
Maße	150 x 220 mm
Gewicht	277 g
Themenwelt	Naturwissenschaften ► Physik / Astronomie ► Thermodynamik
Schlagworte	Entropie • Quanteninformationstheorie • Quantenthermodynamik
ISBN-10	3-8381-2685-8 / 3838126858
ISBN-13	978-3-8381-2685-2 / 9783838126852
Zustand	Neuware