Self-consistent theory of many-body localisation in a quantum spin chain with long-range interactions

@article{Roy2019SelfconsistentTO,
  title={Self-consistent theory of many-body localisation in a quantum spin chain with long-range interactions},
  author={Sthitadhi Roy and David E. Logan},
  journal={SciPost Physics},
  year={2019}
}
Many-body localisation is studied in a disordered quantum spin-1/2 chain with long-ranged power-law interactions, and distinct power-law exponents for interactions between longitudinal and transverse spin components. Using a self-consistent mean-field theory centring on the local propagator in Fock space and its associated self-energy, a localisation phase diagram is obtained as a function of the power-law exponents and the disorder strength of the random fields acting on longitudinal spin… 

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