New Theory of Superconductivity
Boris Vladimirovich Bondarev
(2017)
New Theory of Superconductivity: pp.
13-31.
CHAPTER 2: Density Matrix Method. Variational Principle of Equilibrium Fermions System
The following sections are included:
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2.1. Lagrange Method
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2.2. The Hierarchy of Density Matrices
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2.3. Introduction of the Occupation Numbers
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2.4. The Unitary Transformation
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2.5. Internal Energy of Fermions System
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2.6. Entropy
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2.7. Fermi-Dirac Function
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2.8. Mean-Field Approximation for a Fermions System
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2.9. Multiplicative Approach of Second Order
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Comment