ar X iv : c on d - m at / 9 60 71 10 v 1 1 6 Ju l 1 99 6 Casimir effect around a screw dislocation

ar X iv : c on d - m at / 9 60 31 71 v 1 2 7 M ar 1 99 6 Effect of noise for two interacting particles in a random potential

We investigated the effect of noise on propagation of two interacting particles pairs in a quasi one–dimensional random potential. It is shown that pair diffusion is strongly enhanced by short range interaction comparing with the non–interacting case.

ar X iv : c on d - m at / 9 60 71 85 v 1 2 6 Ju l 1 99 6 Quasiperiodic Modulated - Spring Model

We study the classical vibration problem of a chain with spring constants which are modulated in a quasiperiodic manner, i. e., a model in which the elastic energy is ∑ j kj(uj−1 − uj), where kj = 1 + ∆cos[2πσ(j − 1/2) + θ] and σ is an irrational number. For ∆ < 1, it is shown analytically that the spectrum is absolutely continuous, i.e., all the eigen modes are extended. For ∆ = 1, numerical s...

ar X iv : h ep - l at / 9 60 70 64 v 1 2 6 Ju l 1 99 6

We present results from magnetic monopoles in SU (2) lattice gauge theory at finite temperature. The lattices are 16 3 × N t , for N t = 4, 6, 8, 12, at β = 2.5115. Quantities discussed are: the spacial string tension, Polyakov loops, and the screening of timelike and spacelike magnetic currents.

ar X iv : c on d - m at / 9 60 71 43 v 1 2 1 Ju l 1 99 6 Spreading of molecularly thin wetting films on solid interfaces

In this paper we study kinetics of spreading of thin liquid films on solid interfaces. We present an overview of current experimental picture and discuss available theoretical approaches and their limitations. We report some new experimental results on spreading of molecularly thin liquid films and propose an analytically solvable microscopic model, which reproduces experimentally observed beha...

ar X iv : c on d - m at / 9 60 31 90 v 1 2 9 M ar 1 99 6 The Four - Dimensional XY Spin Glass