N. S. Tonchev

collaborators

2 papers

cond-mat.stat-mech2000

Exact results for some Madelung type constants in the finite-size scaling theory

H. Chamati, N. S. Tonchev

A general formula is obtained from which the madelung type constant: $C (d ∣ ν) = \int_{0}^{\infty} d x x^{d /2 - ν - 1} [(l = - \infty \sum \infty e^{- x l^{2}})^{d} - 1 - (\frac{π}{x})^{d /2}]$ extensively…

cond-mat1997

Low-temperature regimes and finite-size scaling in a quantum spherical model

H. Chamati, D. M. Danchev, E. S. Pisanova +1

A $d$ --dimensional quantum model in the spherical approximation confined to a general geometry of the form $L^{d - d^{'}} \times \infty^{d^{'}} \times L_{τ}^{z}$ ( $L$ --linear s…