Quantum transfer-matrices for the sausage model

被引：19
|
作者：
Bazhanov, Vladimir V. [1 ]
Kotousov, Gleb A. [1 ,2 ]
Lukyanov, Sergei L. [2 ,3 ]
机构：
[1] Australian Natl Univ, Dept Theoret Phys, Res Sch Phys & Engn, Canberra, ACT 2601, Australia
[2] Rutgers State Univ, NHETC, Dept Phys & Astron, Piscataway, NJ 08855 USA
[3] LD Landau Inst Theoret Phys, Chernogolovka 142432, Russia
来源：
JOURNAL OF HIGH ENERGY PHYSICS | 2018年 / 01期
关键词：
Field Theories in Lower Dimensions; Integrable Field Theories; Lattice Integrable Models; Sigma Models; THERMODYNAMIC BETHE-ANSATZ; CONFORMAL FIELD-THEORY; HIDDEN GRASSMANN STRUCTURE; INTEGRABLE STRUCTURE; SIGMA-MODELS; ODE/IM CORRESPONDENCE; VOLUME DEPENDENCE; GOLDSTONE BOSONS; ENERGY-SPECTRUM; GROUND-STATE;
D O I：
10.1007/JHEP01(2018)021
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：
In this work we revisit the problem of the quantization of the two-dimensional O (3) non-linear sigma model and its one-parameter integrable deformation - the sausage model. Our consideration is based on the so-called ODE/IQFT correspondence, a variant of the Quantum Inverse Scattering Method. The approach allowed us to explore the integrable structures underlying the quantum O (3)/sausage model. Among the obtained results is a system of non-linear integral equations for the computation of the vacuum eigenvalues of the quantum transfer-matrices.
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页数：89
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