Zobrazeno 1 - 10
of 29
pro vyhledávání: '"Boos, H. E."'
Publikováno v:
Nucl.Phys. B712 (2005) 573-599
We show how correlation functions of the spin-1/2 Heisenberg chain without magnetic field in the anti-ferromagnetic ground state can be explicitly calculated using information contained in the quantum Knizhnik-Zamolodchikov equation [qKZ]. We find se
Externí odkaz:
http://arxiv.org/abs/hep-th/0410039
We consider the quantum group invariant XXZ-model. In infrared limit it describes Conformal Field Theory with modified energy-momentum tensor. The correlation functions are related to solutions of level -4 of qKZ equations. We describe these solution
Externí odkaz:
http://arxiv.org/abs/math-ph/0311020
Publikováno v:
Nucl.Phys. B658 (2003) 417-439
We consider the one-dimensional XXX spin 1/2 Heisenberg antiferromagnet at zero temperature and zero magnetic field. We are interested in a probability of formation of a ferromagnetic string in the antiferromagnetic ground-state. We call it emptiness
Externí odkaz:
http://arxiv.org/abs/hep-th/0209246
Publikováno v:
J.Phys.A35:4443-4452,2002
We study spin-1/2 Heisenberg XXX antiferromagnet. The spectrum of the Hamiltonian was found by Hans Bethe in 1931. We study the probability of formation of ferromagnetic string in the antiferromagnetic ground state, which we call emptiness formation
Externí odkaz:
http://arxiv.org/abs/cond-mat/0202346
Autor:
Boos, H. E., Korepin, V. E.
We study XXX Heisenberg spin 1/2 anti-ferromagnet. We evaluate a probability of formation of a ferromagnetic string in the anti-ferromagnetic ground state in thermodynamics limit. We prove that for short strings the probability can be expressed in te
Externí odkaz:
http://arxiv.org/abs/hep-th/0105144
Autor:
Boos, H. E., Korepin, V. E.
Publikováno v:
J.Phys.A34:5311-5316,2001
Riemann zeta function is an important object of number theory. It was also used for description of disordered systems in statistical mechanics. We show that Riemann zeta function is also useful for the description of integrable model. We study XXX He
Externí odkaz:
http://arxiv.org/abs/hep-th/0104008
Autor:
Boos, H. E., Mangazeev, V. V.
This paper is a continuation of our previous work (solv-int/9903001). We obtain two more functional relations for the eigenvalues of the transfer matrices for the $sl(3)$ chiral Potts model at $q^2=-1$. This model, up to a modification of boundary co
Externí odkaz:
http://arxiv.org/abs/solv-int/9903010
Autor:
Boos, H. E., Mangazeev, V. V.
We obtain the functional relations for the eigenvalues of the transfer matrix of the sl(3) chiral Potts model for q^2=-1. For the homogeneous model in both directions a solution of these functional relations can be written in terms of roots of Bethe
Externí odkaz:
http://arxiv.org/abs/solv-int/9903001
In this paper we apply the method of psi-vectors to three dimensional statistical models. This method gives the correspondence between the Bazhanov -- Baxter model and its vertex formulation. Considering psi-vectors for the Planar model, we obtain it
Externí odkaz:
http://arxiv.org/abs/q-alg/9509019
Autor:
Boos, H. E.
Publikováno v:
Int.J.Mod.Phys. A11 (1996) 313
This work is a continuation of paper (hep-th/9407146) where the Boltzmann weights for the N-state integrable spin model on the cubic lattice has been obtained only numerically. In this paper we present the analytical formulae for this model in a part
Externí odkaz:
http://arxiv.org/abs/hep-th/9504119