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Title: | Few-qubit quantum-classical simulation of strongly correlated lattice fermions | Authors: | Kreula, J.M García-Álvarez, L Lamata, L Clark, S.R Solano, E Jaksch, D |
Keywords: | Mean field theory Quantum chemistry Dynamical mean-field theory Future technologies Proof of principles Quantum simulations Quantum-classical Strongly correlated fermions Superconducting circuit Thermodynamic limits Qubits |
Issue Date: | 2016 | Citation: | Kreula, J.M, García-Álvarez, L, Lamata, L, Clark, S.R, Solano, E, Jaksch, D (2016). Few-qubit quantum-classical simulation of strongly correlated lattice fermions. EPJ Quantum Technology 3 (1) : 11. ScholarBank@NUS Repository. https://doi.org/10.1140/epjqt/s40507-016-0049-1 | Rights: | Attribution 4.0 International | 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. @ 2016 Kreula et al. | Source Title: | EPJ Quantum Technology | URI: | https://scholarbank.nus.edu.sg/handle/10635/183302 | ISSN: | 21960763 | DOI: | 10.1140/epjqt/s40507-016-0049-1 | Rights: | Attribution 4.0 International |
Appears in Collections: | Staff Publications Elements |
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