Entanglement Renormalization for Quantum Fields in Real Space

Autor(en)

Jutho Haegeman, Tobias Osborne, Henri Verschelde, Frank Verstraete

Abstrakt

We show how to construct renormalization group (RG) flows of quantum field theories in real space, as opposed to the usual Wilsonian approach in momentum space. This is achieved by generalizing the multiscale entanglement renormalization ansatz to continuum theories. The variational class of wave functions arising from this RG flow are translation invariant and exhibits an entropy-area law. We illustrate the construction for a free nonrelativistic boson model, and argue that the full power of the construction should emerge in the case of interacting theories.

Organisation(en)

Quantenoptik, Quantennanophysik und Quanteninformation

Externe Organisation(en)

Ghent University , Gottfried Wilhelm Leibniz Universität Hannover

Journal

Physical Review Letters

Band

110

Anzahl der Seiten

5

ISSN

0031-9007

DOI

https://doi.org/10.1103/PhysRevLett.110.100402

Publikationsdatum

03-2013

Peer-reviewed

Ja

ÖFOS 2012

103025 Quantenmechanik

Schlagwörter

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/52a83b03-d597-490d-9ba2-6babec5475b3