Tight, robust, and feasible quantum speed limits for open dynamics

  title={Tight, robust, and feasible quantum speed limits for open dynamics},
  author={Francesco Campaioli and Felix A. Pollock and Kavan Modi},
Starting from a geometric perspective, we derive a quantum speed limit for arbitrary open quantum evolution, which could be Markovian or non-Markovian, providing a fundamental bound on the time taken for the most general quantum dynamics. Our methods rely on measuring angles and distances between (mixed) states represented as generalized Bloch vectors. We study the properties of our bound and present its form for closed and open evolution, with the latter in both Lindblad form and in terms of a… 

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