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An Expression of the Ground State Energy of the Spin-Boson Model

✍ Scribed by Masao Hirokawa

Publisher: Elsevier Science
Year: 1999
Tongue: English
Weight: 270 KB
Volume: 162
Category: Article
ISSN: 0022-1236
DOI: 10.1006/jfan.1998.3369

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✦ Synopsis

An expression of the ground state energy E SB of the spin-boson Hamiltonian H SB is considered. The expression in the cases of both massive and massless bosons is given by a nonperturbative method. By using the expression, we show a necessary and sufficient condition with respect to a parameter G # [&1, 0] such that a formula with G attains to E SB .

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