Entanglement Hamiltonians for quantum spin chains

ORAL

Abstract

We report on our analysis of entanglement phenomena in gapped and gapless quantum spin chains. In particular we discuss criteria of correspondence between entanglement spectra and Hamiltonian spectra with respect to symmetries, spectral gaps, and eigenstate properties. We find that the structure of the entanglement Hamiltonian associated with the ground state is helpful to discover various spectral properties of the full system.

*RT acknowledges support from a Feodor Lynen Fellowship of the Humboldt Foundation.

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Authors

  • Ronny Thomale

    • Princeton University

  • Stephan Rachel

    • Yale University
    • Yale University, Department of Physics, New Haven, CT 06520
    • Physics Department, Yale University

  • Daniel Arovas

    • University of California at San Diego
    • UC San Diego
    • University of California, San Diego

  • Andrei Bernevig

    • Department of Physics, Princeton University, Princeton, NJ 08544
    • Princeton University