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Topological Quantum Computing
Open Quantum Systems Decoherence
Quantum Simulation
Superconducting Qubits
Hidden XY structure of the bond-charge Hubbard model
arXiv
Authors: Marco Roncaglia, Cristian Degli Esposti Boschi, Arianna Montorsi
Year
2010
Paper ID
11031
Status
Preprint
Abstract Read
~2 min
Abstract Words
60
Citations
N/A
Abstract
The repulsive one-dimensional Hubbard model with bond-charge interaction (HBC) in the superconducting regime is mapped onto the spin-1/2 XY model with transverse field. We calculate correlations and phase boundaries, realizing an excellent agreement with numerical results. The critical line for the superconducting transition is shown to coincide with the analytical factorization line identifying the commensurate-incommensurate transition in the XY model.
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- This paper contributes to the Quantum Simulation research area in the Quantum Articles archive.
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- The repulsive one-dimensional Hubbard model with bond-charge interaction (HBC) in the superconducting regime is mapped onto the spin-1/2 XY model with transverse field.
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