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Magnetic response in mesoscopic Hubbard rings: A mean field study

机译:Magnetic response in mesoscopic Hubbard rings: A mean field study

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摘要

The present work proposes an idea to remove the long standing controversy between the calculated and measured current amplitudes carried by a small conducting ring upon the application of an AharonovBohm (AB) flux φ. Within a mean field HartreeFock (HF) approximation we numerically calculate persistent current, Drude weight, low-field magnetic susceptibility and related issues. Our analysis may be inspiring for studying magnetic response in nano-scale loop geometries.

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