Lieb-Robinson bound and locality for general markovian quantum dynamics.

  title={Lieb-Robinson bound and locality for general markovian quantum dynamics.},
  author={David Poulin},
  journal={Physical review letters},
  volume={104 19},
  • D. Poulin
  • Published 18 March 2010
  • Physics
  • Physical review letters
The Lieb-Robinson bound shows the existence of a maximum speed of signal propagation in discrete quantum mechanical systems with local interactions. This generalizes the concept of relativistic causality beyond field theory, and provides a powerful tool in theoretical condensed matter physics and quantum information science. Here, we extend the scope of this seminal result by considering general markovian quantum evolution, where we prove that an equivalent bound holds. In addition, we use the… 

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