scholarly journals Thermodynamic Bethe Ansatz and Form Factors for the Homogeneous Sine-Gordon Models

Author(s):  
A. Fring
2021 ◽  
Vol 2021 (1) ◽  
Author(s):  
Bao-ning Du ◽  
Min-xin Huang

Abstract We continue the study of a novel relation between quantum periods and TBA(Thermodynamic Bethe Ansatz)-like difference equations, generalize previous works to a large class of Calabi-Yau geometries described by three-term quantum operators. We give two methods to derive the TBA-like equations. One method uses only elementary functions while the other method uses Faddeev’s quantum dilogarithm function. The two approaches provide different realizations of TBA-like equations which are nevertheless related to the same quantum period.


2020 ◽  
pp. 791-835
Author(s):  
Giuseppe Mussardo

The Thermodynamic Bethe Ansatz (TBA) allows us to study finite size and finite temperature effects of an integrable model. This chapter investigates the integral equations that determine the free energy and gives their physical interpretation. It discusses Casimir energy, Bethe relativistic wave function, the derivation of thermodynamics, the meaning of pseudo-energy (dressed energy and momentum), infrared and ultraviolet limits, the coefficient of bulk energy, the general form of the TBA equations, the thermodynamics of the free field theories, L-channel quantization and the LeClair–Mussardo formula. It also covers the application of the Yang–Lee S-matrix, the magnetic field Ising model, and the tricritical Ising model.


2020 ◽  
Vol 125 (9) ◽  
Author(s):  
Benjamin Basso ◽  
Gwenaël Ferrando ◽  
Vladimir Kazakov ◽  
De-liang Zhong

2014 ◽  
Vol 29 (20) ◽  
pp. 1450111 ◽  
Author(s):  
Stefano Negro

We review the construction of the fermionic basis for sinh–Gordon model and investigate numerically the ultraviolet limit of the one-point functions. We then compare the predictions obtained from this formalism against previously established results.


1995 ◽  
Vol 2 (6) ◽  
pp. 677-693 ◽  
Author(s):  
Edward Frenkel ◽  
András Szenes

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