SPINON GAS DESCRIPTION OF THE S=1/2 HEISENBERG CHAIN WITH INVERSE-SQUARE EXCHANGE - EXACT SPECTRUM AND THERMODYNAMICS

被引：280

作者：

HALDANE, FDM ^{[1
]}

机构：

[1] UNIV CALIF SAN DIEGO,DEPT PHYS,LA JOLLA,CA 92093

来源：

PHYSICAL REVIEW LETTERS | 1991年 / 66卷 / 11期

关键词：

D O I：

10.1103/PhysRevLett.66.1529

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The exact spectrum and thermodynamics of the S = 1/2 Heisenberg chain with inverse-square exchange are explicitly obtained in closed form, and a description in terms of semionic spin-1/2 "spinon" excitations is developed. The unexpected degeneracies of the spectrum lead to a new representation of the k = 1 SU(2) Wess-Zumino-Witten conformal field theory that exposes an infinite set of SU(2) symmetries of that model.

引用

收藏

页码：1529 / 1532

页数：4

相关论文

共 18 条

[1] CRITICAL-BEHAVIOR OF TWO-DIMENSIONAL SYSTEMS WITH CONTINUOUS SYMMETRIES [J].

AFFLECK, I .

PHYSICAL REVIEW LETTERS, 1985, 55 (13) :1355-1358

[2] THE RESONATING VALENCE BOND STATE IN LA2CUO4 AND SUPERCONDUCTIVITY [J].

ANDERSON, PW .

SCIENCE, 1987, 235 (4793) :1196-1198

[3] Metal theory [J].

Bethe, H. .

ZEITSCHRIFT FUR PHYSIK, 1931, 71 (3-4) :205-226

[4] CORRELATIONS BETWEEN EIGENVALUES OF A RANDOM MATRIX [J].

DYSON, FJ .

COMMUNICATIONS IN MATHEMATICAL PHYSICS, 1970, 19 (03) :235-&

[5] CORRELATION-FUNCTIONS FOR HUBBARD-TYPE MODELS - THE EXACT RESULTS FOR THE GUTZWILLER WAVE-FUNCTION IN ONE DIMENSION [J].

GEBHARD, F ;

VOLLHARDT, D .

PHYSICAL REVIEW LETTERS, 1987, 59 (13) :1472-1475

[6]

Haldane F. D. M., UNPUB

[7] DEMONSTRATION OF THE LUTTINGER LIQUID CHARACTER OF BETHE-ANSATZ-SOLUBLE MODELS OF 1-D QUANTUM FLUIDS [J].

HALDANE, FDM .

PHYSICS LETTERS A, 1981, 81 (2-3) :153-155

[8]

HALDANE FDM, 1980, PHYS REV LETT, V45, P1358, DOI 10.1103/PhysRevLett.45.1358

[9] EXACT JASTROW-GUTZWILLER RESONATING-VALENCE-BOND GROUND-STATE OF THE SPIN 1/2 ANTIFERROMAGNETIC HEISENBERG CHAIN WITH 1/R2 EXCHANGE [J].

HALDANE, FDM .

PHYSICAL REVIEW LETTERS, 1988, 60 (07) :635-638

[10] SPONTANEOUS DIMERIZATION IN THE S=1/2 HEISENBERG ANTI-FERROMAGNETIC CHAIN WITH COMPETING INTERACTIONS [J].

HALDANE, FDM .

PHYSICAL REVIEW B, 1982, 25 (07) :4925-4928