Finite-size corrections of an integrable chain with alternating spins

被引：9

作者：

Dorfel, BD

Meissner, S

机构：

[1] Institut für Physik, Humboldt-Universität, Theorie der Elementarteilchen, 10115 Berlin

来源：

JOURNAL OF PHYSICS A-MATHEMATICAL AND GENERAL | 1997年 / 30卷 / 06期

关键词：

SPIN-1/2 HEISENBERG CHAIN; QUANTUM CHAINS;

D O I：

10.1088/0305-4470/30/6/010

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

In this paper we calculate the finite-size corrections of an anisotropic integrable spin chain, consisting of spins s = 1 and s = 1/2. The calculations are done in two regions of the phase diagram with respect to the two couplings (c) over bar and (c) over bar. In the case of conformal invariance we obtain the final answer for the ground state and its lowest excitations, which generalizes earlier results.

引用

页码：1831 / 1841

页数：11

共 14 条

[1] THE CLASS OF UNIVERSALITY OF INTEGRABLE AND ISOTROPIC GL(N) MIXED MAGNETS [J].

ALADIM, SR ;

MARTINS, MJ .

JOURNAL OF PHYSICS A-MATHEMATICAL AND GENERAL, 1993, 26 (24) :7287-7299

[2] CRITICAL-BEHAVIOR OF INTEGRABLE MIXED-SPIN CHAINS [J].

ALADIM, SR ;

MARTINS, MJ .

JOURNAL OF PHYSICS A-MATHEMATICAL AND GENERAL, 1993, 26 (12) :L529-L534

[3]

ALADIM SR, 1993, J PHYS A, V26, P7301

[4] NEW INTEGRABLE QUANTUM CHAINS COMBINING DIFFERENT KINDS OF SPINS [J].

DEVEGA, HJ ;

WOYNAROVICH, F .

JOURNAL OF PHYSICS A-MATHEMATICAL AND GENERAL, 1992, 25 (17) :4499-4516

[5] THERMODYNAMICS OF INTEGRABLE CHAINS WITH ALTERNATING SPINS [J].

DEVEGA, HJ ;

MEZINCESCU, L ;

NEPOMECHIE, RI .

PHYSICAL REVIEW B, 1994, 49 (18) :13223-13226

[6] SCALAR KINKS [J].

DEVEGA, HJ ;

MEZINCESCU, L ;

NEOPMECHIE, RI .

INTERNATIONAL JOURNAL OF MODERN PHYSICS B, 1994, 8 (25-26) :3473-3485

[7] Ground-state structure and low temperature behaviour of an integrable chain with alternating spins [J].

Dorfel, BD ;

Meissner, S .

JOURNAL OF PHYSICS A-MATHEMATICAL AND GENERAL, 1996, 29 (20) :6471-6487

[8] CONFORMAL ANOMALY AND SURFACE-ENERGY FOR POTTS AND ASHKIN-TELLER QUANTUM CHAINS [J].

HAMER, CJ ;

QUISPEL, GRW ;

BATCHELOR, MT .

JOURNAL OF PHYSICS A-MATHEMATICAL AND GENERAL, 1987, 20 (16) :5677-5693

[9] NEW SOLUTIONS OF THE BETHE-ANSATZ EQUATIONS FOR THE ISOTROPIC AND ANISOTROPIC SPIN-1/2 HEISENBERG CHAIN [J].

JUTTNER, G ;

DORFEL, BD .

JOURNAL OF PHYSICS A-MATHEMATICAL AND GENERAL, 1993, 26 (13) :3105-3120

[10]

STMEISSNER, 1996, J PHYS A, V29, P1949

← 1 2 →