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5 papers · 2 filters
A Quantum Field Theory with Infinite Resonance States
G. Mussardo, S. Penati
We study an integrable quantum field theory of a single stable particle with an infinite number of resonance states. The exact --matrix of the model is expressed in terms of Jac…
Correspondence between Minkowski and de Sitter Quantum Field Theory
Marco Bertola, Vittorio Gorini, Ugo Moschella +1
In this letter we show that the ``preferred'' Klein-Gordon Quantum Field Theories (QFT's) on a d-dimensional de Sitter spacetime can be obtained from a Klein-Gordon QFT on a (d+1)-…
Bosonic-type S-Matrix, Vacuum Instability and CDD Ambiguities
G. Mussardo, P. Simon
We consider the simplest bosonic-type S-matrix which is usually regarded as unphysical due to the complex values of the finite volume ground state energy. While a standard quantum…
Form Factors in Off--Critical Superconformal Models
G. Mussardo
We discuss the determination of the lowest Form Factors relative to the trace operators of N=1 Super Sinh-Gordon Model. Analytic continuations of these Form Factors as functions of…
Finite Temperature Correlation Functions in Integrable QFT
A. Leclair, G. Mussardo
Finite temperature correlation functions in integrable quantum field theories are formulated only in terms of the usual, temperature-independent form factors, and certain thermodyn…