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Title:

Large classes of quantum scarred Hamiltonians from matrix product states

Document type:
Zeitschriftenaufsatz
Author(s):
Moudgalya, Sanjay; O'Brien, Edward; Bernevig, B. Andrei; Fendley, Paul; Regnault, Nicolas
Abstract:
Motivated by the existence of exact many-body quantum scars in the Affleck-Kennedy-Lieb-Tasaki (AKLT) chain, we explore the connection between matrix product state (MPS) wave functions and many-body quantum scarred Hamiltonians. We provide a method to systematically search for and construct parent Hamiltonians with towers of exact eigenstates composed of quasiparticles on top of an MPS wave function. These exact eigenstates have low entanglement in spite of being in the middle of the spectrum, t...     »
Journal title:
Physical Review B 2020-07
Year:
2020
Journal volume:
102
Journal issue:
8
Fulltext / DOI:
doi:10.1103/physrevb.102.085120
Publisher:
American Physical Society (APS)
E-ISSN:
2469-99502469-9969
Date of publication:
11.08.2020
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