---
res:
  bibo_abstract:
  - Quantum kinetically constrained models have recently attracted significant attention
    due to their anomalous dynamics and thermalization. In this work, we introduce
    a hitherto unexplored family of kinetically constrained models featuring a conserved
    particle number and strong inversion-symmetry breaking due to facilitated hopping.
    We demonstrate that these models provide a generic example of so-called quantum
    Hilbert space fragmentation, that is manifested in disconnected sectors in the
    Hilbert space that are not apparent in the computational basis. Quantum Hilbert
    space fragmentation leads to an exponential in system size number of eigenstates
    with exactly zero entanglement entropy across several bipartite cuts. These eigenstates
    can be probed dynamically using quenches from simple initial product states. In
    addition, we study the particle spreading under unitary dynamics launched from
    the domain wall state, and find faster than diffusive dynamics at high particle
    densities, that crosses over into logarithmically slow relaxation at smaller densities.
    Using a classically simulable cellular automaton, we reproduce the logarithmic
    dynamics observed in the quantum case. Our work suggests that particle conserving
    constrained models with inversion symmetry breaking realize so far unexplored
    universality classes of dynamics and invite their further theoretical and experimental
    studies.@eng
  bibo_authorlist:
  - foaf_Person:
      foaf_givenName: Pietro
      foaf_name: Brighi, Pietro
      foaf_surname: Brighi
      foaf_workInfoHomepage: http://www.librecat.org/personId=4115AF5C-F248-11E8-B48F-1D18A9856A87
    orcid: 0000-0002-7969-2729
  - foaf_Person:
      foaf_givenName: Marko
      foaf_name: Ljubotina, Marko
      foaf_surname: Ljubotina
      foaf_workInfoHomepage: http://www.librecat.org/personId=F75EE9BE-5C90-11EA-905D-16643DDC885E
    orcid: 0000-0003-0038-7068
  - foaf_Person:
      foaf_givenName: Maksym
      foaf_name: Serbyn, Maksym
      foaf_surname: Serbyn
      foaf_workInfoHomepage: http://www.librecat.org/personId=47809E7E-F248-11E8-B48F-1D18A9856A87
    orcid: 0000-0002-2399-5827
  bibo_doi: 10.48550/arXiv.2210.15607
  dct_date: 2022^xs_gYear
  dct_language: eng
  dct_title: Hilbert space fragmentation and slow dynamics in particle-conserving
    quantum East models@
...