Non-Abelian string breaking phenomena with matrix product states

  • Stefan KühnEmail author
  • Erez Zohar
  • J. Ignacio Cirac
  • Mari Carmen Bañuls
Open Access
Regular Article - Theoretical Physics


Using matrix product states, we explore numerically the phenomenology of string breaking in a non-Abelian lattice gauge theory, namely 1+1 dimensional SU(2). The technique allows us to study the static potential between external heavy charges, as traditionally explored by Monte Carlo simulations, but also to simulate the real-time dynamics of both static and dynamical fermions, as the latter are fully included in the formalism. We propose a number of observables that are sensitive to the presence or breaking of the flux string, and use them to detect and characterize the phenomenon in each of these setups.


Field Theories in Lower Dimensions Lattice Gauge Field Theories 


Open Access

This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0), which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited.


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© The Author(s) 2015

Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (, which permits use, duplication, adaptation, distribution, and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.

Authors and Affiliations

  • Stefan Kühn
    • 1
    Email author
  • Erez Zohar
    • 1
  • J. Ignacio Cirac
    • 1
  • Mari Carmen Bañuls
    • 1
  1. 1.Max-Planck-Institut für QuantenoptikGarchingGermany

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