Field theory for zero temperature soft anharmonic spin glasses in a field

  title={Field theory for zero temperature soft anharmonic spin glasses in a field},
  author={Pierfrancesco Urbani},
  journal={Journal of Physics A: Mathematical and Theoretical},
  • P. Urbani
  • Published 3 March 2022
  • Physics
  • Journal of Physics A: Mathematical and Theoretical
We introduce a finite dimensional anharmonic soft spin glass in a field and show how it allows the construction a field theory at zero temperature and the corresponding loop expansion. The mean field level of the model coincides with a recently introduced fully connected model, the KHGPS model, and it has a spin glass transition in a field at zero temperature driven by the appearance of pseudogapped non-linear excitations. We analyze the zero temperature limit of the theory and the behavior of… 
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