Boson Mean Field Theory of Effective Holon-Holon Interaction in the RVB Model |
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| Authors: | Yong-jun LIU Jin-ming DONG Chang-de GONG |
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| Institution: | 1. Department of Phyeics, Nanjing University, Nanjing 210008, China;
2. Center of Theoretical Physics, CCAST (World Laboratory), Beijing;
3. Department of Physics, Nanjing University, Nanjing 210008, China |
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| Abstract: | The RVB model is investigated by a mean field theory, in which the holon is expressed by a fermion operator, and the spinon by a boson operator. The effective holon-holon interaction by exchanging the spinons is derived for T≠0. It is found that the interaction is attractive. |
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