Study of the 2d Ising Model with mixed perturbation
P. Grinza, A. Rago
TL;DR
This paper investigates the 2d Ising model near the magnetic axis using numerical methods, focusing on corrections to the mass spectrum and the influence of the stress-energy tensor.
Contribution
It provides new numerical estimates of leading order corrections and highlights the role of the stress-energy tensor in the model.
Findings
Estimated leading order corrections to the Zamolodchikov mass spectrum.
Found evidence of non-zero contributions from the stress-energy tensor.
Numerical diagonalization of the transfer matrix used for analysis.
Abstract
We study the thermodynamical observables of the 2d Ising model in the neighborhood of the magnetic axis by means of numerical diagonalization of the transfer matrix. In particular, we estimate the leading order corrections to the Zamolodchikov mass spectrum and find evidence of non-vanishing contributions due to the stress-energy tensor.
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