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Planar and lamellar antiferromagnetisms in Hubbard model
General theory of phase diagrams in quantum lattice models (due to Borgs, Kotecký and Ueltschi) is applied to a proof of existence of transitions between lamellar and planar states in hubbard model....
BE - Teoretická fyzika
- 2000 •
- Jx
Rok uplatnění
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
Hubbard model with magnetic field: antiferromagnetism and paramagnetism
A general approach to quantum lattice models is illustrated by a proof of existence of an antiferromagnetic order for asymmetric Hubbard model....
BE - Teoretická fyzika
- 1999 •
- D
Rok uplatnění
D - Stať ve sborníku
On the correlation effect in Peierls-Hubbard chains.
The dimerization, charge and spin gaps of a half-filled Peirls-Hubbard chain is reexamined by the incremental expansion technique.
BE - Teoretická fyzika
- 2003 •
- Jx
Rok uplatnění
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
Low-temperature pecularities of the optical response in undoped cuprates
The optical conductivity of CuO2 chains is calculated and discussed at finite temperature within Hubbard model.
BM - Fyzika pevných látek a magnetismus
- 2009 •
- Jx
Rok uplatnění
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
Electron-hole resonant states in the d=.infin. Hubbard model.
A new solution of simplified parquet equations for two-particle vertex function is examined and interpreted in the dynamical mean-field limit of the Hubbard model....
BE - Teoretická fyzika
- 2002 •
- Jx
Rok uplatnění
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
Evidence for two types of low-energy charge transfer excitations in Sr 2 CuO 3 .
The theoretical simulation of the EELS spectra of insulating cuprates requires the consideration of low-lying oxygen 2p-states neglected in the widely used Hubbard model for these crystals....
BM - Fyzika pevných látek a magnetismus
- 2003 •
- Jx
Rok uplatnění
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
Breaking of SU(4) symmetry and interplay between strongly-correlated phases in the Hubbard model
We study the thermodynamic properties of four-component fermionic mixtures described by the Hubbard model using the dynamical mean-field-theory approach. Special of the Hamiltonian towards the two-band Hubbard model
Atomic, molecular and chemical physics (physics of atoms and molecules including collision, interaction with radiation, magnetic resonances, Mössbauer effect)
- 2017 •
- Jimp •
- Link
Rok uplatnění
Jimp - Článek v periodiku v databázi Web of Science
Výsledek na webu
Antiferromagnetic fluctuations in the one-dimensional Hubbard model
We use a mean-field-type approximation with a two-particle self-consistency renormalizing the bare interaction to study the low-temperature critical behavior of the one-dimensional Hubbard model near half filling caused by enhanced ...
Condensed matter physics (including formerly solid state physics, supercond.)
- 2020 •
- Jimp •
- Link
Rok uplatnění
Jimp - Článek v periodiku v databázi Web of Science
Výsledek na webu
The Hubbard model with local disorder in dinfinity.
Annotation not available...
BE - Teoretická fyzika
- 1995 •
- D
Rok uplatnění
D - Stať ve sborníku
Hubbard model with disorder in infinite dimensions.
Annotation not available...
BE - Teoretická fyzika
- 1993 •
- D
Rok uplatnění
D - Stať ve sborníku
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