Zobrazeno 1 - 10
of 254
pro vyhledávání: '"Finkel, F."'
Publikováno v:
J. High Energy Phys. 11 (2023) 018(33)
A coupled massive Thirring model of two interacting Dirac spinors in $1+1$ dimensions with fields taking values in a Grassmann algebra is introduced, which is closely related to a SU(1,1) version of the Grassmannian Thirring model also introduced in
Externí odkaz:
http://arxiv.org/abs/2307.03626
Publikováno v:
J. High Energy Phys. 2020, 99 (2020)
We introduce a new class of open, translationally invariant spin chains with long-range interactions depending on both spin permutation and (polarized) spin reversal operators, which includes the Haldane-Shastry chain as a particular degenerate case.
Externí odkaz:
http://arxiv.org/abs/2003.07217
Publikováno v:
J. Stat. Mech.-Theory E. (2019) 073104(43)
We analyze the thermodynamics and the critical behavior of the supersymmetric su($m$) $t$-$J$ model with long-range interactions. Using the transfer matrix formalism, we obtain a closed-form expression for the free energy per site both for a finite n
Externí odkaz:
http://arxiv.org/abs/1903.12541
Publikováno v:
J. Stat. Mech.-Theory E. (2019) 043105(27)
We study the spectrum of the long-range supersymmetric su$(m)$ $t$-$J$ model of Kuramoto and Yokoyama in the presence of an external magnetic field and a charge chemical potential. To this end, we first establish the precise equivalence of a large cl
Externí odkaz:
http://arxiv.org/abs/1811.10297
Publikováno v:
Nucl. Phys. B 898 (2015) 53-77
We study the spin Calogero model of D_N type with polarized spin reversal operators, as well as its associated spin chain of Haldane-Shastry type, both in the antiferromagnetic and ferromagnetic cases. We compute the spectrum and the partition functi
Externí odkaz:
http://arxiv.org/abs/1503.08231
Publikováno v:
Nuclear Physics B 866 (2013) 391-413
We compute the spectrum of the su(m) spin Sutherland model of B_N type, including the exact degeneracy of all energy levels. By studying the large coupling constant limit of this model and of its scalar counterpart, we evaluate the partition function
Externí odkaz:
http://arxiv.org/abs/1207.5941
Publikováno v:
Annals of Physics 327 (2012) 2627-2665
We study the thermodynamic properties of spin chains of Haldane-Shastry type associated with the A_{N-1} root system in the presence of a uniform external magnetic field. To this end, we exactly compute the partition function of these models for an a
Externí odkaz:
http://arxiv.org/abs/1204.3805
Publikováno v:
Phys. Rev. E 82 (2010) 051187
We provide a rigorous proof of the fact that the level density of all su(m) spin chains of Haldane-Shastry type associated with the A_{N-1} root system approaches a Gaussian distribution as the number of spins N tends to infinity. Our approach is bas
Externí odkaz:
http://arxiv.org/abs/1005.3202
Publikováno v:
Nucl.Phys.B839:499-525,2010
In this paper we study Inozemtsev's su(m) quantum spin model with hyperbolic interactions and the associated spin chain of Haldane-Shastry type introduced by Frahm and Inozemtsev. We compute the spectrum of Inozemtsev's model, and use this result and
Externí odkaz:
http://arxiv.org/abs/1005.0487
Publikováno v:
Nucl.Phys.B843:505-533,2011
In this paper we study the su(m) spin Sutherland (trigonometric) model of D_N type and its related spin chain of Haldane-Shastry type obtained by means of Polychronakos's freezing trick. As in the rational case recently studied by the authors, we sho
Externí odkaz:
http://arxiv.org/abs/0909.2968