Correspondence Principle for Many-Body Scars in Ultracold Rydberg Atoms

  title={Correspondence Principle for Many-Body Scars in Ultracold Rydberg Atoms},
  author={Christopher J. Turner and Jean-Yves Desaules and Kieran Bull and Zlatko Papi'c},
  journal={arXiv: Quantum Physics},
The theory of quantum scarring -- a remarkable violation of quantum unique ergodicity -- rests on two complementary pillars: the existence of unstable classical periodic orbits and the so-called quasimodes, i.e., the non-ergodic states that strongly overlap with a small number of the system's eigenstates. Recently, interest in quantum scars has been revived in a many-body setting of Rydberg atom chains. While previous theoretical works have identified periodic orbits for such systems using time… 

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