Reliability of Lattice Gauge Theories.

@article{Halimeh2020ReliabilityOL,
  title={Reliability of Lattice Gauge Theories.},
  author={Jad C. Halimeh and Philipp Hauke},
  journal={Physical review letters},
  year={2020},
  volume={125 3},
  pages={
          030503
        }
}
Currently, there are intense experimental efforts to realize lattice gauge theories in quantum simulators. Except for specific models, however, practical quantum simulators can never be fine-tuned to perfect local gauge invariance. There is thus a strong need for a rigorous understanding of gauge-invariance violation and how to reliably protect against it. As we show through analytic and numerical evidence, in the presence of a gauge invariance-breaking term the gauge violation accumulates only… Expand

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