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arXiv · 1701.06542

Non Relativistic Limit of Integrable QFT with fermionic excitations

Alvise Bastianello·Andrea De Luca·Giuseppe Mussardo
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Abstract

The aim of this paper is to investigate the non-relativistic limit of integrable quantum field theories with fermionic fields, such as the O(N) Gross-Neveu model, the supersymmetric Sinh-Gordon and non-linear sigma models. The non-relativistic limit of these theories is implemented by a double scaling limit which consists of sending the speed of light c to infinity and rescaling at the same time the relevant coupling constant of the model in such a way to have finite energy excitations. For the general purpose of mapping the space of continuous non-relativistic integrable models, this paper completes and integrates the analysis done in Ref.[1] on the non-relativistic limit of purely bosonic theories.

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Alvise Bastianello, Andrea De Luca, Giuseppe Mussardo. 2017-05-12. Non Relativistic Limit of Integrable QFT with fermionic excitations. https://doi.org/10.1088/1751-8121%2Faa6f69

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