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

Gesualdo Delfino·Giuliano Niccoli
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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}.

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Gesualdo Delfino, Giuliano Niccoli. 2006-02-22. The composite operator T\bar{T} in sinh-Gordon and a series of massive minimal models. https://doi.org/10.1088/1126-6708%2F2006%2F05%2F035

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