• Corpus ID: 49664195

A Gaussian Variational Approach to cMERA for Interacting Fields

  title={A Gaussian Variational Approach to cMERA for Interacting Fields},
  author={Jordan S. Cotler and Javier Molina-Vilaplana and Mark T. Mueller},
  journal={arXiv: High Energy Physics - Theory},
We use the Gaussian variational principle to apply cMERA to interacting quantum field theories in arbitrary spacetime dimensions. By establishing a correspondence between the first two terms in the variational expansion and the Gaussian Effective Potential, we can exactly solve for a variational approximation to the cMERA entangler. As examples, we treat scalar $\varphi^4$ theory and the Gross-Neveu model and extract non-perturbative behavior. We also comment on the connection between… 
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