Symmetries and Conservation Laws in Quantum Trajectories: Dissipative Freezing.

  title={Symmetries and Conservation Laws in Quantum Trajectories: Dissipative Freezing.},
  author={C. Mu{\~n}oz and B. Bu{\vc}a and J. Tindall and A. Gonz'alez-Tudela and D. Jaksch and D. Porras},
  journal={arXiv: Quantum Physics},
  • C. Muñoz, B. Buča, +3 authors D. Porras
  • Published 2019
  • Physics, Mathematics
  • arXiv: Quantum Physics
  • In driven-dissipative systems, the presence of a strong symmetry guarantees the existence of several steady states belonging to different symmetry sectors. Here we show that, when a system with a strong symmetry is initialized in a quantum superposition involving several of these sectors, each individual stochastic trajectory will randomly select a single one of them and remain there for the rest of the evolution. Since a strong symmetry implies a conservation law for the corresponding symmetry… CONTINUE READING
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