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most citedSpin chains and combinatorics

215 citations · 1k across the 30 of their papers we have counts for

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cond-mat.stat-mech2004

New conjecture for the Perk-Schultz models

F. C. Alcaraz, Yu. G. Stroganov

We present a new conjecture for the Perk-Schultz models. This conjecture extends a conjecture presented in our article (Alcaraz FC and Stroganov YuG (2002) J. Phys. A vol…

cond-mat.stat-mech2002★ 7 cited

The Wave Functions for the Free-Fermion Part of the Spectrum of the Quantum Spin Models

F. C. Alcaraz, Yu. G. Stroganov

We conjecture that the free-fermion part of the eigenspectrum observed recently for the Perk-Schultz spin chain Hamiltonian in a finite lattice with …

cond-mat.stat-mech2002★ 4 cited

Free fermion branches in some quantum spin models

F. C. Alcaraz, Yu. G. Stroganov

Extensive numerical analysis of the eigenspectra of the invariant Perk-Schultz Hamiltonian shows some simple regularities for a significant part of the eigenspectrum. Ins…

cond-mat.stat-mech2002★ 8 cited

The Finite Size SU(3) Perk-Schultz Model with Deformation Parameter q=exp(i 2 pi/3)

F. C. Alcaraz, Y. Stroganov

From extensive numeric diagonalizations of the SU(3) Perk-Schultz Hamiltonian with a special value of the anisotropy and different boundary conditions, we have observed simple regu…

cond-mat.stat-mech2001★ 4 cited

O(1) loop model with different boundary conditions and symmetry classes of alternating-sign matrices

A. V. Razumov, Yu. G. Stroganov

This work as an extension of our recent paper where we have found a numerical evidence for the fact that the numbers of the states of the fully packed loop (FPL) model with fixed l…

cond-mat.stat-mech2001★ 80 cited

Spin chains and combinatorics: twisted boundary conditions

A. V. Razumov, Yu. G. Stroganov

The finite XXZ Heisenberg spin chain with twisted boundary conditions was considered. For the case of even number of sites , anisotropy parameter -1/2 and twisting angle …

cond-mat.stat-mech2001★ 110 cited

The Importance of being Odd

Yu. Stroganov

In this letter I consider mainly a finite XXZ spin chain with periodic boundary conditions and \bf{odd} \rm number of sites. This system is described by the Hamiltonian $H_{xxz}=-\…

cond-mat.stat-mech2000★ 215 cited

Spin chains and combinatorics

A. V. Razumov, Yu. G. Stroganov

In this letter we continue the investigation of finite XXZ spin chains with periodic boundary conditions and odd number of sites, initiated in paper \cite{S}. As it turned out, for…