Results 61 to 70 of about 13,863,108 (200)

The Fermi–Hubbard model at unitarity

open access: yesNew Journal of Physics, 2006
We simulate the dilute attractive Fermi-Hubbard model in the unitarity regime using a diagrammatic determinant Monte Carlo algorithm with worm-type updates. We obtain the dependence of the critical temperature on the filling factor $ν$ and, by extrapolating to $ν\to 0$, determine the universal critical temperature of the continuum unitary Fermi gas in ...
Burovski, Evgeni   +3 more
openaire   +3 more sources

Father Hubbard Saying Mass at Aniakchak

open access: yes
Father Hubbard Saying Mass at ...
Bernard Hubbard
core   +1 more source

xp7orer/scaling-Mott-Hubbard hubbard

open access: yes, 2019
A Hamiltonian renormalization group for the electronic unfrustrated 2d Hubbard model on a square ...
Anirban Mukherjee
core   +1 more source

Fr. Hubbard and Katmai wearing gas masks, H-3256

open access: yes, 1935
Fr. Hubbard and Katmai Fumarole pit. Fr. Hubbard and dog Katmai wearing (unnecessary) gas masks while exploring the ""smokes!"
Hubbard, Bernard Rosecrans, 1888-1962
core   +1 more source

Machine learning Hubbard parameters with equivariant neural networks

open access: yesnpj Computational Materials
Density-functional theory with extended Hubbard functionals (DFT + U + V) provides a robust framework to accurately describe complex materials containing transition-metal or rare-earth elements.
Martin Uhrin   +4 more
doaj   +1 more source

Electronic spectrum and superconductivity in Hubbard model

open access: yesCondensed Matter Physics, 2008
A microscopic theory of electronic spectrum and superconducting pairing within the Hubbard model is formulated. The Dyson equation for the normal and anomalous Green functions in terms of the Hubbard operators is derived by applying the Mori-type ...
N.M. Plakida, V.S. Oudovenko
doaj   +1 more source

Exact Ground States for Quasi 1D Systems with Hubbard Interaction [PDF]

open access: yesЖурнал нано- та електронної фізики, 2012
Using a positive semidefinite operator technique we deduced exact ground states for a modified diamond chain described by a non-integrable Hubbard model with on-site repulsion.
Zs. Gulácsi, E. Kovács
doaj  

Zero Modes and Global Antiferromagnetism in Strained Graphene

open access: yesPhysical Review X, 2014
A novel magnetic ground state is reported for the Hubbard Hamiltonian in strained graphene. When the chemical potential lies close to the Dirac point, the ground state exhibits locally both the Néel and ferromagnetic orders, even for weak Hubbard ...
Bitan Roy   +2 more
doaj   +1 more source

Exact eigenstates of multicomponent Hubbard models: SU(N) magnetic η pairing, weak ergodicity breaking, and partial integrability

open access: yesPhysical Review Research
We construct exact eigenstates of multicomponent Hubbard models in arbitrary dimensions by generalizing the η-pairing mechanism. Our models include the SU(N) Hubbard model as a special case.
Masaya Nakagawa   +2 more
doaj   +1 more source

EQSE diagonalization of the Hubbard model [PDF]

open access: yesNuclear Physics B - Proceedings Supplements, 2000
5 pages, to appear in the proceedings of the International Light-Cone Meeting on Non-Perturbative QCD and Hadron Phenomenology, Heidelberg, June ...
openaire   +2 more sources

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