EAN: 9783030343934

Bilder-Quelle: discount24.de - Sport-Freizeit

This book provides an introduction to topics in non-equilibrium quantum statistical physics for both mathematicians and theoretical physicists. The first part introduces a kinetic equation of Kolmogorov type which is needed to describe an isolated atom (actually in experiments an ion) under the effect of a classical pumping electromagnetic field which keeps the atom in its excited state(s) together with the random emission of fluorescence photons which put it back into its ground state. The quantum kinetic theory developed in the second part is an extension of Boltzmann's classical (non-quantum) kinetic theory of a dilute gas of quantum bosons. This is the source of many interesting fundamental questions particularly because if the temperature is low enough such a gas is known to have at equilibrium a transition the Bose-Einstein transition where a finite portion of the particles stay in the quantum ground state. An important question considered is how a Bose gas condensate develops in time if its energy is initially low enough.

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