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The Hartree-Fock and the generator coordinate methods in field theory. The polaron problem: João da Providencia, Maria da Conceição Ruivo, and Célia Sousa. Departamento de Física, Universidade, Coimbra, Portugal

Publisher: Elsevier Science
Year: 1975
Tongue: English
Weight: 77 KB
Volume: 90
Category: Article
ISSN: 0003-4916
DOI: 10.1016/0003-4916(75)90012-3

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The Hartree-Fock and Generator Coordinat

The Hartree-Fock and Generator Coordinate Methods in field theory. The polaron problem

✍ João da Providencia; Maria da Conceição Ruivo; Célia A de Sousa 📂 Article 📅 1975 🏛 Elsevier Science 🌐 English ⚖ 369 KB

Well known results of the strong coupling theory of the polaron are derived by simple variational methods (The Hartree-Fock and the Generator Coordinate Methods) based on coherent-state-wave-functions describing the electron surrounded by a phonon cloud.