PIRSA:17060023

Video URL

https://pirsa.org/17060023

Entanglement structure and UV regularization in cMERA

Franco Rubio, A. (2017). Entanglement structure and UV regularization in cMERA. Perimeter Institute for Theoretical Physics. https://pirsa.org/17060023

Franco Rubio, Adrian. Entanglement structure and UV regularization in cMERA. Perimeter Institute for Theoretical Physics, Jun. 01, 2017, https://pirsa.org/17060023 

          @misc{ scivideos_PIRSA:17060023,
            doi = {10.48660/17060023},
            url = {https://pirsa.org/17060023},
            author = {Franco Rubio, Adrian},
            keywords = {Other Physics},
            language = {en},
            title = {Entanglement structure and UV regularization in cMERA},
            publisher = {Perimeter Institute for Theoretical Physics},
            year = {2017},
            month = {jun},
            note = {PIRSA:17060023 see, \url{https://scivideos.org/pirsa/17060023}}
          }

Adrian Franco Rubio Max Planck Institute of Quantum Optics

Talk numberPIRSA:17060023
DOI10.48660/17060023
Source RepositoryPIRSA
Collection
Talk Type Conference
Subject

Abstract

We give an introduction to cMERA, a continuous tensor networks ansatz for ground states of QFTs. We also explore a particular feature of it: an intrinsic length scale that acts as an ultraviolet cutoff. We provide evidence for the existence of this cutoff based on the entanglement structure of a particular family of cMERA states, namely Gaussian states optimized for free bosonic and fermionic CFTs. Our findings reflect that short distance entanglement is not fully present in the ansatz states, thus hinting at ultraviolet regularization.