Dimensional crossover on multileg attractive- U Hubbard ladders
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DOI: 10.1103/physreva.107.053301
Abstract: We study the ground state properties of a polarized two-component Fermi gas on multileg attractive-$U$ Hubbard ladders. Using exact diagonalization and density matrix renormalization group method simulations, we construct grand canonical phase diagrams for ladder… read more here.
Keywords: multileg attractive; attractive hubbard; hubbard ladders; dimensional crossover ... See more keywords
From sudden quench to adiabatic dynamics in the attractive Hubbard model
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DOI: 10.1103/physrevb.96.205110
Abstract: We study the crossover between the sudden quench limit and the adiabatic dynamics of superconducting states in the attractive Hubbard model. We focus on the dynamics induced by the change of the attractive interaction during… read more here.
Keywords: adiabatic dynamics; hubbard model; attractive hubbard; quench ... See more keywords
Universal thermodynamics of the one-dimensional attractive Hubbard model
Sign Up to like & getrecommendations! Published in 2017 at "Physical Review B"
DOI: 10.1103/physrevb.97.125145
Abstract: This work is supported by Key NNSFC Grants No. 11534014, the National Key R&D Program of China No. 2017YFA0304500, NNSFC Grants No. 11374331 and No. 11174375, and ARC Discovery Project No. DP130102839 and No. DP170104934. read more here.
Keywords: attractive hubbard; thermodynamics; one dimensional; dimensional attractive ... See more keywords
Dynamical vertex approximation for the attractive Hubbard model
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DOI: 10.1103/physrevb.99.045137
Abstract: In this work, we extend the formalism of the dynamical vertex approximation (D$\Gamma$A), a diagrammatic approach including many-body correlations beyond the dynamical mean-field theory, to treat the case of {\sl attractive} onsite interactions. We start… read more here.
Keywords: attractive hubbard; vertex; approximation; hubbard model ... See more keywords
Charge instabilities of the extended attractive Hubbard model on the cubic lattice
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DOI: 10.1142/s0217984920400503
Abstract: The paramagnetic phase of the extended attractive Hubbard model on the cubic lattice is studied within the spin rotation invariant Kotliar-Ruckenstein slave boson representation at zero temperature... read more here.
Keywords: hubbard model; attractive hubbard; cubic lattice; model cubic ... See more keywords
Spontaneously Symmetry-Breaking States in the Attractive SU(N) Hubbard Model
Sign Up to like & getrecommendations! Published in 2017 at "Journal of the Physical Society of Japan"
DOI: 10.7566/jpsj.86.034702
Abstract: We investigate spontaneously symmetry-breaking states in the attractive SU(N) Hubbard model at half filling. Combining dynamical mean-field theory with the continuous-time quantum Monte Carlo method, we obtain finite-temperature phase diagrams for the superfluid state. When… read more here.
Keywords: hubbard model; attractive hubbard; breaking states; spontaneously symmetry ... See more keywords