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Titel:

Large classes of quantum scarred Hamiltonians from matrix product states

Dokumenttyp:
Zeitschriftenaufsatz
Autor(en):
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...     »
Zeitschriftentitel:
Physical Review B 2020-07
Jahr:
2020
Band / Volume:
102
Heft / Issue:
8
Volltext / DOI:
doi:10.1103/physrevb.102.085120
Verlag / Institution:
American Physical Society (APS)
E-ISSN:
2469-99502469-9969
Publikationsdatum:
11.08.2020
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