Spin-Charge Separation at Finite Temperature in the Supersymmetric t-J Model with Long-Range Interactions
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概要
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Thermodynamics is derived rigorously for the 1D supersymmetric t-J model and its SU(K, 1) generalization with inverse-square exchange. The system at low temperature is described in terms of spinons, antispinons, holons and antiholons obeying fractional statistics. They are all free and render the spin susceptibility independent of electron density, and the charge susceptibility independent of magnetization. Thermal spin excitations responsible for the entropy of the SU(K, 1) model are ascribed to free para-fermions of order K-1.t-J model, supersymmetry, fractional statistics, exclusion statistics, Tomonaga-Luttinger liquid, spin-charge separation, parafermion, 1/r^2 interaction, Sutherland model
- 社団法人日本物理学会の論文
- 1995-12-15
著者
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Kato Yusuke
Department Of Applied Biological Chemistry Graduate School Of Agricultural And Life Sciences Univers
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Kuramoto Yoshio
Department Of Applied Physics Faculty Of Engineering Tohoku University
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Kato Yusuke
Department Of Physics Tohoku University
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