✦ LIBER ✦

Electrostatic Analogy for Integrable Pairing Force Hamiltonians

✍ Scribed by L. Amico; A. Di Lorenzo; A. Mastellone; A. Osterloh; R. Raimondi

Book ID: 102562007
Publisher: Elsevier Science
Year: 2002
Tongue: English
Weight: 269 KB
Volume: 299
Category: Article
ISSN: 0003-4916
DOI: 10.1006/aphy.2002.6277

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✦ Synopsis

For the exactly solved reduced BCS model an electrostatic analogy exists; in particular it served to obtain the exact thermodynamic limit of the model from the Richardson Bethe ansatz equations. We present an electrostatic analogy for a wider class of integrable Hamiltonians with pairing force interactions. We apply it to obtain the exact thermodynamic limit of this class of models. To verify the analytical results, we compare them with numerical solutions of the Bethe ansatz equations for finite systems at half-filling for the ground state.

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