Efficient Numerical Self-Consistent Mean-Field Approach for Fermionic Many-Body Systems by Polynomial Expansion on Spectral Density
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概要
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We propose an efficient numerical algorithm to solve Bogoliubov--de Gennes equations self-consistently for inhomogeneous superconducting systems with a reformulated polynomial expansion scheme. This proposed method is applied to typical issues such as a vortex under randomly distributed impurities and a normal conducting junction sandwiched between superconductors. With various technical remarks, we show that its efficiency becomes remarkable in large-scale parallel performance.
- 2012-02-15
著者
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Nagai Yuki
CCSE, Japan Atomic Energy Agency, Kashiwa, Chiba 277-8587, Japan
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MACHIDA Masahiko
CCSE, JAERI
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Machida Masahiko
CCSE, Japan Atomic Energy Agency, Kashiwa, Chiba 277-8587, Japan
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Ota Yukihiro
CCSE, Japan Atomic Energy Agency, 6-9-3 Higashi-Ueno, Taito-ku, Tokyo 110-0015
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Ota Yukihiro
CCSE, Japan Atomic Energy Agency, Kashiwa, Chiba 277-8587, Japan
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