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Record Nr. |
UNINA9910777934503321 |
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Autore |
Bogolubov N. N (Nikolai Nikolaevich), <1909-1992.> |
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Titolo |
Aspects of polaron theory [[electronic resource] ] : equilibrium and nonequilibrium problems / / N. N. Bogolubov, N. N. Bogolubov, Jr |
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Pubbl/distr/stampa |
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Hackensack, N.J., : World Scientific, c2008 |
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ISBN |
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Descrizione fisica |
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1 online resource (180 p.) |
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Altri autori (Persone) |
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BogolubovN. N (Nikolai Nikolaevich) |
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Disciplina |
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Soggetti |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Note generali |
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Description based upon print version of record. |
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Nota di bibliografia |
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Includes bibliographical references (p. 173-176). |
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Nota di contenuto |
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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 |
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Sommario/riassunto |
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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 |
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