Varying the Unruh Temperature in Integrable Quantum Field Theories

Abstract

A computational scheme is developed to determine the response of a quantum field theory (QFT) with a factorized scattering operator under a variation of the Unruh temperature. To this end a new family of integrable systems is introduced, obtained by deforming such QFTs in a way that preserves the bootstrap S-matrix. The deformation parameter βplays the role of an inverse temperature for the thermal equilibrium states associated with the Rindler wedge, β= 2πbeing the QFT value. The form factor approach provides an explicit computational scheme for the β\neq 2πsystems, enforcing in particular a modification of the underlying kinematical arena. As examples deformed counterparts of the Ising model and the Sinh-Gordon model are considered.

34 pages, Latex, 3 Figures, minor changes

References in corpus (5)

• A Derivation of the Cyclic Form Factor Equation
• The determinant representation for quantum correlation functions of the sinh-Gordon model
• Form Factors, Thermal States and Modular Structures
• Geometric Entropy and Curvature Coupling in Conical Spaces: zeta Function Approach
• The Form Factors in the Sinh-Gordon Model

Cited by in corpus (5)

• Entanglement Entropy of Non-Unitary Integrable Quantum Field Theory
• Conical Twist Fields and Null Polygonal Wilson Loops
• Higher particle form factors of branch point twist fields in integrable quantum field theories
• Exact two-particle Matrix Elements in S-Matrix Preserving Deformation of Integrable QFTs
• Replica-deformation of the SU(2)-invariant Thirring model via solutions of the qKZ equation