• Corpus ID: 49664195

# A Gaussian Variational Approach to cMERA for Interacting Fields

@article{Cotler2016AGV,
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},
year={2016}
}
• Published 7 December 2016
• Physics
• 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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