Excited states in some simple perturbed conformal field theories

被引:67
作者
Dorey, P [1 ]
Tateo, R [1 ]
机构
[1] Univ Durham, Dept Math Sci, Durham DH1 3LE, England
关键词
integrable models; finite-size scaling; thermodynamic Bethe ansatz;
D O I
10.1016/S0550-3213(97)00838-9
中图分类号
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号
摘要
The method of analytic continuation is used to find exact integral equations for a selection of finite-volume energy levels for the non-unitary minimal models M-2,M-2N+3 perturbed by their phi(13) operators. The N = 2 case is studied in particular detail. Along the way, we find a number of general results which should be relevant to the study of excited states in other models. (C) 1998 Elsevier Science B.V.
引用
收藏
页码:575 / 623
页数:49
相关论文
共 25 条
[1]   Quantum field theories in finite volume: Excited state energies [J].
Bazhanov, VV ;
Lukyanov, SL ;
Zamolodchikov, AB .
NUCLEAR PHYSICS B, 1997, 489 (03) :487-531
[2]  
CARDUY JL, 1989, PHYS LETT B, V2256, P275
[3]   Non-linear integral equation and excited-states scaling functions in the sine-Gordon model [J].
Destri, C ;
deVega, HJ .
NUCLEAR PHYSICS B, 1997, 504 (03) :621-664
[4]   Excited states by analytic continuation of TBA equations [J].
Dorey, P ;
Tateo, R .
NUCLEAR PHYSICS B, 1996, 482 (03) :639-659
[5]  
Eden R. J., 1966, ANAL S MATRIX
[6]   Excited state Destri De Vega equation for sine-Gordon and restricted sine-Gordon models [J].
Fioravanti, D ;
Mariottini, A ;
Quattrini, E ;
Ravanini, F .
PHYSICS LETTERS B, 1997, 390 (1-4) :243-251
[7]   S-MATRICES FOR PERTURBATIONS OF CERTAIN CONFORMAL FIELD-THEORIES [J].
FREUND, PGO ;
KLASSEN, TR ;
MELZER, E .
PHYSICS LETTERS B, 1989, 229 (03) :243-247
[8]   Scaling limit of the Ising model in a field [J].
Grimm, U ;
Nienhuis, B .
PHYSICAL REVIEW E, 1997, 55 (05) :5011-5025
[9]   THE THERMODYNAMICS OF PURELY ELASTIC-SCATTERING THEORIES AND CONFORMAL PERTURBATION-THEORY [J].
KLASSEN, TR ;
MELZER, E .
NUCLEAR PHYSICS B, 1991, 350 (03) :635-689
[10]   FIELD-THEORY AND STATISTICAL SYSTEMS - PURELY ELASTIC-SCATTERING THEORIES AND THEIR ULTRAVIOLET LIMITS [J].
KLASSEN, TR ;
MELZER, E .
NUCLEAR PHYSICS B, 1990, 338 (03) :485-528