Theory of a Polaron at Finite Temperatures

• Saitoh Motohiko

  Institute of Physics, College of General Education, University of Tokyo

書誌事項

タイトル別名

• Theory of a Polaron at Finite Temperatu

抄録

In order to calculate the effective mass and free energy of a polaron at finite temperatures, Feynman’s path-integral formalism is generalized in the following two points: (a) the most general quadratic form is used to fully optimize the partition function, and (b) the new definition of the effective mass is introduced such that the effective mass is determined from the acceleration rate against the fictitious driving force which is incorporated in the original Lagrangian. The use of (a) leads to a non-linear integral equation which determines the best trial form. This non-linear integral equation is solved analytically for the Fröhlich polaron model to obtain the explicit expressions for the effective mass and free energy at finite temperatures.

収録刊行物

• Ｊｏｕｒｎａｌ　ｏｆ　ｔｈｅ　Ｐｈｙｓｉｃａｌ　Ｓｏｃｉｅｔｙ　ｏｆ　Ｊａｐａｎ

  Ｊｏｕｒｎａｌ　ｏｆ　ｔｈｅ　Ｐｈｙｓｉｃａｌ　Ｓｏｃｉｅｔｙ　ｏｆ　Ｊａｐａｎ 49 (3), 878-885, 1980

  一般社団法人 日本物理学会

キーワード

• General Physics and Astronomy

詳細情報

• CRID: 1390001204184688384
• NII論文ID: 110001965185
• NII論文ID: 130003896518
• NII論文ID: 210000089110
• NII書誌ID: AA00704814
• DOI: 10.1143/jpsj.49.878
• BIBCODE: 1980JPSJ...49..878S
• ISSN: 13474073
• ISSN: 00319015
• NDL書誌ID: 2190976
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I2190976
• Web Site: https://journals.jps.jp/doi/pdf/10.1143/JPSJ.49.878
• 本文言語コード: en
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