Journal article
Few-qubit quantum-classical simulation of strongly correlated lattice fermions
- Abstract:
- We study a proof-of-principle example of the recently proposed hybrid quantum-classical simulation of strongly correlated fermion models in the thermodynamic limit. In a “two-site” dynamical mean-field theory (DMFT) approach we reduce the Hubbard model to an effective impurity model subject to self-consistency conditions. The resulting minimal two-site representation of the non-linear hybrid setup involves four qubits implementing the impurity problem, plus an ancilla qubit on which all measurements are performed. We outline a possible implementation with superconducting circuits feasible with near-future technology.
- Publication status:
- Published
- Peer review status:
- Peer reviewed
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(Preview, Version of record, pdf, 1.8MB, Terms of use)
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- Publisher copy:
- 10.1140/epjqt/s40507-016-0049-1
Authors
+ Engineering and Physical Sciences Research Council
More from this funder
- Funding agency for:
- Jaksch, D
- Grant:
- EP/M013243/1
- Publisher:
- Springer
- Journal:
- EPJ Quantum Technology More from this journal
- Volume:
- 3
- Publication date:
- 2016-08-08
- Acceptance date:
- 2016-07-23
- DOI:
- ISSN:
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2196-0763
- Keywords:
- Pubs id:
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pubs:640978
- UUID:
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uuid:f751e7a2-591b-4574-8b3b-29a765ebe039
- Local pid:
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pubs:640978
- Source identifiers:
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640978
- Deposit date:
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2016-08-29
Terms of use
- Copyright holder:
- Kreula et al
- Copyright date:
- 2016
- Notes:
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© 2016 Kreula et al. This article is distributed under the terms of the Creative Commons Attribution 4.0 International License
(http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided
you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and
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