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Approximating observables on eigenstates of large many-body localized systems

Abstract:

Eigenstates of fully many-body localized (FMBL) systems can be organized into spin algebras based on quasilocal operators called l-bits. These spin algebras define quasilocal l-bit measurement (τzi) and l-bit flip (τxi) operators. For a disordered Heisenberg spin chain in the MBL regime we approximate l-bit flip operators by finding them exactly on small windows of systems and extending them onto the whole system by exploiting their quasilocal nature. We subsequently use these operators to re...

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Publication status:
Published
Peer review status:
Peer reviewed
Version:
Accepted Manuscript

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Publisher copy:
10.1103/PhysRevB.99.104201

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More by this author
Institution:
University of Oxford
Division:
MPLS Division
Department:
Physics
Subgroup:
Theoretical Physics
Oxford college:
St Peter's College
Role:
Author
More by this author
Institution:
University of Oxford
Division:
MPLS Division
Department:
Physics
Subgroup:
Theoretical Physics
Role:
Author
More by this author
Institution:
University of Oxford
Division:
MPLS Division
Department:
Physics
Subgroup:
Theoretical Physics
Role:
Author
More by this author
Institution:
University of Oxford
Division:
MPLS Division
Department:
Physics
Subgroup:
Theoretical Physics
Oxford college:
Somerville College
Role:
Author
Publisher:
American Physical Society Publisher's website
Journal:
Physical review B: Condensed matter and materials physics Journal website
Volume:
99
Pages:
Article: 104201
Publication date:
2019-03-11
Acceptance date:
2019-01-09
DOI:
EISSN:
1550-235X
ISSN:
1098-0121
Pubs id:
pubs:958225
URN:
uri:301be787-c8b3-4a05-bfc6-edec89c00457
UUID:
uuid:301be787-c8b3-4a05-bfc6-edec89c00457
Local pid:
pubs:958225

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