Journal article
Quantum disentangled liquid in the half-filled Hubbard model
- Abstract:
- We investigate the existence of quantum-disentangled liquid (QDL) states in the half-filled Hubbard model on bipartite lattices. In the one-dimensional case we employ a combination of integrability and strong-coupling expansion methods to argue that there are indeed finite energy-density eigenstates that exhibit QDL behavior in the sense of Grover and Fisher [J. Stat. Mech. (2014) P1001010.1088/1742-5468/2014/10/P10010]. The states exhibiting the QDL property are atypical in the sense that while their entropy density is nonzero, it is smaller than that of thermal states at the same energy density. We argue that for U≫t these latter thermal states exhibit a weaker form of the QDL property, which carries over to the higher dimensional case.
- Publication status:
- Published
- Peer review status:
- Peer reviewed
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- Files:
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(Preview, Accepted manuscript, pdf, 808.7KB, Terms of use)
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- Publisher copy:
- 10.1103/PhysRevB.96.195153
Authors
- Publisher:
- American Physical Society
- Journal:
- Physical Review B More from this journal
- Volume:
- 96
- Issue:
- 19
- Pages:
- 195153
- Publication date:
- 2017-11-27
- Acceptance date:
- 2017-10-31
- DOI:
- EISSN:
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2469-9969
- ISSN:
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2469-9950
- Keywords:
- Pubs id:
-
pubs:811773
- UUID:
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uuid:70b8e6ae-03d1-48c0-94e9-703866ccdf6a
- Local pid:
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pubs:811773
- Source identifiers:
-
811773
- Deposit date:
-
2018-04-19
Terms of use
- Copyright holder:
- American Physical Society
- Copyright date:
- 2017
- Notes:
- © 2017 American Physical Society. This is the accepted manuscript version of the article. The final version is available online from the American Physical Society at: http://dx.doi.org/10.1103/PhysRevB.96.195153
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