Statistical Physics of Non Equilibrium Quantum Phenomena

Name: Statistical Physics of Non Equilibrium Quantum Phenomena
Brand: Springer Nature Switzerland AG
SKU: 9783030343934
Price: 21723 HUF
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Szerző: Yves Pomeau, Minh-Binh Tran

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Kötés: Puha kötésű

Kiadó: Springer Nature Switzerland AG

Elérhetőség: Beszállítói készleten

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The transition from Newtonian mechanics to quantum mechanics in the early years of the twentieth cen...

Információk a könyvről

Szerző

Yves Pomeau, Minh-Binh Tran

Nyelv

Angol

Kötés

Könyv - Puha kötésű

Kiadva

2019

oldal

227

EAN

9783030343934

Enbook ID

24840317

Kiadó

Springer Nature Switzerland AG

Súly

454

Méretek

155 x 235 x 14

Teljes leírás

The transition from Newtonian mechanics to quantum mechanics in the early years of the twentieth century has been a major step in the progress of our understanding of the world. This transition was more than a change of equations because it involved also a deep change in our understanding of the limits of human knowledge. It included from the very beginning a statistical interpretation of the theory. Originally statistical concepts were introduced to describe classically (not with quantum theory) complex systems with many degrees of freedom like a volume of fluid including a very large number of molecules. These large systems cannot be fully described and/or predicted since no human being has enough computational power to solve Newton's equations with the initial data (position and velocity) of too many particles. In classical mechanics, another point makes difficult to predict distant future from the initial data. This problem occurs when a small disturbance or inaccuracy in the initial conditions is amplified in the course of time, a character linked to what is called the ergodicity properties of dynamical systems, which is very hard to prove for given systems. In these examples (many particles and/or ergodicity of classical dynamics) the statistical method of analysis is just a way to describe systems given the imperfect knowledge of the initial conditions and their overwhelming abundance. In the limit of a dilute gas, Boltzmann found the right theory for describing the evolution of a large number of particles interacting by short range two-body forces. In this theory, kinetic equations are a primary tool. Kinetic equations modelise systems made up of a large number of particles (gases, plasma, etc.) by a distribution function in the phase space of particles, based on the modeling assumption that there are so many particles that the whole system can be treated as a continuum. In the first part of this book, we introduce a kinetic equation, of the Kolmogorov type, necessary to describe the situation, in which an isolated atom (actually an ion in the experiments) under both the effect of a classical pumping EM field which keeps it in the excited state(s) together with the random emission of fluorescence photons putting back this atom in its ground state. The quantum kinetic theory developed in the second part of this book is the extension of Boltzmann 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. This book provides an introduction to these systems for both mathematicians and theoretical physicists who are interested in the topic.

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Statistical Physics of Non Equilibrium Quantum Phenomena

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