The elementary excitations of the BCS model in the canonical ensemble

被引：3

作者：

Sierra, G ^{[1
]}

Román, JM

Dukelsky, J

机构：

[1] UAM, CSIC, Inst Fis Teor, Madrid, Spain

[2] CSIC, Inst Extractors Mat, Madrid, Spain

来源：

INTERNATIONAL JOURNAL OF MODERN PHYSICS A | 2004年 / 19卷

关键词：

D O I：

10.1142/S0217751X04020531

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

We summarize previous works on the exact ground state and the elementary excitations of the exactly solvable BCS model in the canonical ensemble. The BCS model is solved by Richardson equations, and, in the large coupling limit, by Gaudin equations. The relationship between this two kinds of solutions is used to classify the excitations.

引用

页码：381 / 395

页数：15

共 25 条

[1] The BCS model and the off-shell Bethe ansatz for vertex models [J].

Amico, L ;

Falci, G ;

Fazio, R .

JOURNAL OF PHYSICS A-MATHEMATICAL AND GENERAL, 2001, 34 (33) :6425-6434

[2] Chern-Simons theory and BCS superconductivity [J].

Asorey, M ;

Falceto, F ;

Sierra, G .

NUCLEAR PHYSICS B, 2002, 622 (03) :593-614

[3] OFF-SHELL BETHE-ANSATZ EQUATIONS AND N-POINT CORRELATORS IN THE SU(2) WZNW THEORY [J].

BABUJIAN, HM .

JOURNAL OF PHYSICS A-MATHEMATICAL AND GENERAL, 1993, 26 (23) :6981-6990

[4] OFF-SHELL BETHE-ANSATZ EQUATION FOR GAUDIN MAGNETS AND SOLUTIONS OF KNIZHNIK-ZAMOLODCHIKOV EQUATIONS [J].

BABUJIAN, HM ;

FLUME, R .

MODERN PHYSICS LETTERS A, 1994, 9 (22) :2029-2039

[5] THEORY OF SUPERCONDUCTIVITY [J].

BARDEEN, J ;

COOPER, LN ;

SCHRIEFFER, JR .

PHYSICAL REVIEW, 1957, 108 (05) :1175-1204

[6] Integrability of the pairing Hamiltonian [J].

Cambiaggio, MC ;

Rivas, AMF ;

Saraceno, M .

NUCLEAR PHYSICS A, 1997, 624 (02) :157-167

[7] DIAGONALIZATION OF A CLASS OF SPIN HAMILTONIANS [J].

GAUDIN, M .

JOURNAL DE PHYSIQUE, 1976, 37 (10) :1087-1098

[8]

GAUDIN M, 1968, UNPUB ETATS PROPRES

[9]

Goodman F. M., 1989, COXETER GRAPHS TOWER

[10] COMBINATORICS OF REPRESENTATIONS OF UQ[SL(N)] AT Q = 0 [J].

JIMBO, M ;

MISRA, KC ;

MIWA, T ;

OKADO, M .

COMMUNICATIONS IN MATHEMATICAL PHYSICS, 1991, 136 (03) :543-566

← 1 2 3 →