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math-ph2002★ 7 cited
Exactly solvable discrete BCS - type Hamiltonians and the Six-Vertex model
A. A. Ovchinnikov
We propose the new family of the exactly solvable discrete state BCS - type Hamiltonians based on its relationship to the six-vertex model in the quasiclassical limit both in the r…
math-ph2002★ 2 cited
Asymptotics and functional form of correlators in the XX - spin chain of finite length
A. A. Ovchinnikov
We verify the functional form of the asymptotics of the spin - spin equal - time correlation function for the XX-chain, predicted by the hypothesis of conformal invariance at large…