Aspects of polaron theory : equilibrium and nonequilibrium problems / N. N. Bogolubov, N. N. Bogolubov, Jr.

Format:

Book

Author/Creator:

Bogoli︠u︡bov, N. N. (Nikolaĭ Nikolaevich), 1909-1992.

Contributor:

Bogoli︠u︡bov, N. N. (Nikolaĭ Nikolaevich)

Language:

English

Subjects (All):

Polarons.

Electrons.

Physical Description:

1 online resource (180 p.)

Edition:

1st ed.

Place of Publication:

Hackensack, N.J. : World Scientific, c2008.

Language Note:

English

Summary:

The linear polaron model is an excellent example of an exactly soluble, yet nontrivial polaron system. It serves as a trial system or zero-level approximation in many sophisticated methods of polaron investigation. This book analyzes, in particular, the possibility of reduction of the full polaron Hamiltonian to the linear one, and introduces a special method of calculating thermodynamical characteristics based on the calculation of the averages of T-products. This T-product formalism seems to be a more convenient way of doing similar calculations involving Feynman's path integral approach.Thi

Contents:

CONTENTS; Introduction; Chapter 1. Linear Polaron Model; 1.1. Introduction to the Linear Polaron Model; 1.2. Equations of Motion.; 1.3. Two-time Correlation Functions and Green Functions for the Linear Polaron Model.; 1.4. Free Energy Calculation for the Linear Polaron Model; 1.5. Average Values of T-products; 1.6. Averaged Operator T-Product Calculus for Some Model Oscillatory Systems; 1.7. Auxiliary Operator Identities; Chapter 2. Equilibrium Thermodynamic State of Polaron System.; 2.1. Free Energy and Ground State Energy Calculation

2.2. Equilibrium Momentum Distribution Function in the Polaron TheoryChapter 3. Kinetic Equations in Polaron Theory; 3.1. Generalized Kinetic Equation. Method of Rigorous Bose-Amplitude Elimination.; 3.2. Kinetic Equations in the First-Order Approximation for Weak Interactions; 3.3. Nonequilibrium Properties of the Linear Polaron Model; Appendix I; Appendix II.; Appendix III; References; About the Authors

Notes:

Description based upon print version of record.

Includes bibliographical references (p. 173-176).

ISBN:

9789812833990

9812833994

OCLC:

747539691