Results 11 to 20 of about 254,998 (330)

Luttinger sum rules and spin fractionalization in the SU(N) Kondo lattice

open access: yesPhysical Review Research, 2021
We show how Oshikawa's theorem for the Fermi surface volume of the Kondo lattice can be extended to the SU(N) symmetric case. By extending the theorem, we can show that the mechanism of Fermi surface expansion seen in the large N mean-field theory is ...
Tamaghna Hazra, Piers Coleman
doaj   +1 more source

Fermi Surfaces of Composite Fermions [PDF]

open access: yesJournal of Low Temperature Physics, 2020
Review of arXiv:1701.07832, arXiv:1704.06265 and arXiv:1706.09470 with some new results.
R. N. Bhatt, Matteo Ippoliti
openaire   +3 more sources

Nonlinear bosonization of Fermi surfaces: The method of coadjoint orbits

open access: yesPhysical Review Research, 2022
We develop a method for bosonizing the Fermi surface based on the formalism of the coadjoint orbits. This allows one to parametrize the Fermi surface by a bosonic field that depends on the spacetime coordinates and on the position on the Fermi surface ...
Luca V. Delacrétaz   +3 more
doaj   +1 more source

Fermi surfaces in Kondo insulators [PDF]

open access: yesJournal of Physics: Condensed Matter, 2018
Journal of Physics: Condensed Matter (2018)
Hsu Liu   +8 more
openaire   +6 more sources

Efficient Calculation of Anisotropic Fermi Surface Problems through Helmholtz Fermi Surface Harmonics

open access: yesProceedings, 2019
In metals, the details of the Fermi surface and the magnitude of the matrix elements connecting different points defined on it determine most of their transport properties, which are limited by the electron-phonon coupling and the scattering by ...
Jon Lafuente-Bartolome   +2 more
doaj   +1 more source

Optical signatures of shear collective modes in strongly interacting Fermi liquids

open access: yesPhysical Review Research, 2021
The concept of Fermi liquid lays a solid cornerstone to the understanding of electronic correlations in quantum matter. This ordered many-body state rigorously organizes electrons at zero temperature in progressively higher momentum states, up to the ...
D. Valentinis
doaj   +1 more source

The lattice Fermi surface [PDF]

open access: yesNuclear Physics A, 2002
5 pages, 5 figures, contribution to "Statistical QCD", Bielefeld, 26th-30th August ...
openaire   +4 more sources

Asymptotic Pomeranchuk instability of Fermi liquids in half-filled Landau levels

open access: yesScientific Reports, 2023
We present a theory of spontaneous Fermi surface deformations for half-filled Landau levels (filling factors of the form $$\nu =2 \, n+1/2$$ ν = 2 n + 1 / 2 ).
Jorge Quintanilla, Orion Ciftja
doaj   +1 more source

Fermi Surface of Yttrium

open access: yesMaterials Science Forum, 2001
Electron-positron momentum densities in Y, reconstructed from two-dimensional angular correlation of annihilation radiation spectra, are compared with the theoretical predictions of fully-relativistic augmented plane-wave calculations. Knowledge of the theoretical densities and of the effects on them of certain symmetry selection rules has allowed us ...
R.N. West   +2 more
openaire   +3 more sources

Fermi Surface Reconstruction without Symmetry Breaking

open access: yesPhysical Review X, 2020
We present a sign-problem-free quantum Monte Carlo study of a model that exhibits quantum phase transitions without symmetry breaking and associated changes in the size of the Fermi surface.
Snir Gazit   +2 more
doaj   +1 more source

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