Journal ArticleDOI
Holstein-Primakoff theory for many-body systems
Reads0
Chats0
TLDR
In this article, the authors discuss the relationship between generalized coherent states and suitable extensions of the Holstein-Primakoff theory of quantum spin systems, illustrating the common origin of a variety of semiclassical approximation schemes encountered in many-body theory.Abstract:
We discuss the relationship between generalized coherent states and suitable extensions of the Holstein-Primakoff theory of quantum spin systems, illustrating the common origin of a variety of semiclassical approximation schemes encountered in many-body theory.read more
Citations
More filters
Journal ArticleDOI
A dipole interpretation of the v = 1/2 state
V. Pasquier,F.D.M. Haldane +1 more
TL;DR: In this paper, the authors consider the problem of bosonic particles interacting repulsively in a strong magnetic field at the filling factor v = 1 and project the system in the lowest Landau level and set up a formalism to map the dynamics into an interacting fermion system.
Journal ArticleDOI
A microscopic approach to the dimerization in frustrated spin-1/2 antiferromagnetic chains
TL;DR: In this paper, the spontaneous dimerization of frustrated spin-1/2 antiferromagnetic chains was studied via a microscopic approach based on a proper set of composite operators (i.e., pseudo-spin operators).
Journal ArticleDOI
Three-body correlation effects on the spin dynamics of double-exchange ferromagnets
TL;DR: In this article, a variational calculation of the spin wave excitation spectrum of double-exchange ferromagnets in different dimensions is presented, which can be used to study the intermediate exchange coupling and electron concentration regime relevant to the manganites.
Journal ArticleDOI
NMR quadrupolar system described as Bose-Einstein-condensate-like system.
R. Auccaise,J. Teles,Tito José Bonagamba,Ivan S. Oliveira,Eduardo R. deAzevedo,Roberto S. Sarthour +5 more
TL;DR: The NMR description in the HP representation could be applied in the future as a workbench for BEC-like systems, where the statistical properties may be obtained using the intermediate statistic, first established by Gentile.
Journal ArticleDOI
Magnon-phonon interaction in antiferromagnetic two-dimensional MXenes.
TL;DR: This work performs first-principles calculation to study the effect of magnon-phonon interaction on magnon spectra of the antiferromagnetic MXenes Cr2TiC2FCl, and calculated the phonon dominated magnon relaxation time based on the magnonSpectra broadening.