CHARGE AND SPIN GAPS IN THE DIMERIZED HUBBARD MODEL |
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Authors: | Ding Guo-hui Ye Fei Xu Bo-wei |
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Affiliation: | Department of physics, Shanghai Jiaotong university, Shanghai 200030, China |
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Abstract: | By using the bosonization and renormalization group methods, we have studied the low energy physical properties in the one-dimensional dimerized Hubbard model. The formation of charge and spin gaps is investigated both for the half-filled electron band and away from the half-filled band. The scaling laws of the charge and spin gaps with the dimerization parameterΔ and the repulsive interaction strength U are obtained. |
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Keywords: | dimerized hubbard model charge and spin gaps |
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