The composite operator T\bar{T} in sinh-Gordon and a series of massive minimal models

Abstract

The composite operator T\bar{T}, obtained from the components of the energy-momentum tensor, enjoys a quite general characterization in two-dimensional quantum field theory also away from criticality. We use the form factor bootstrap supplemented by asymptotic conditions to determine its matrix elements in the sinh-Gordon model. The results extend to the breather sector of the sine-Gordon model and to the minimal models M_{2/(2N+3)} perturbed by the operator phi_{1,3}.

29 pages

References in corpus (2)

• Expectation value of composite field $T\bar{T}$ in two-dimensional quantum field theory
• Counting minimal form factors of the restricted sine-Gordon model

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