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- Hungarian Academy of SciencesHU468 papers
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4 papers · 2 filters
Bose-Einstein condensation and symmetry breaking
Andras Suto
Adding a gauge symmetry breaking field -ν\sqrt{V}(a_0+a_0^*) to the Hamiltonian of some simplified models of an interacting Bose gas we compute the condensate density and the symme…
Nonequilibrium critical dynamics in inhomogeneous systems
Michel Pleimling, Ferenc Igloi
We study nonequilibrium dynamical properties of inhomogeneous systems, in particular at a free surface or at a defect plane. Thereby we consider nonconserved (model-A) dynamics of…
Logarithmic corrections in the two-dimensional Ising model in a random surface field
M. Pleimling, F. A. Bagamery, L. Turban +1
In the two-dimensional Ising model weak random surface field is predicted to be a marginally irrelevant perturbation at the critical point. We study this question by extensive Mont…
O(1) contribution of saddle point fluctuations to the free energy of Bethe Ansatz systems
F. Woynarovich
We develop a method to calculate the contribution of the saddle-point fluctuations to the partition function of systems soluble by the Bethe Ansatz. Using this method we give the O…