32 citations · 152 across the 11 of their papers we have counts for
6 papers · 1 filter
On the nature of Bose-Einstein condensation in disordered systems
Thomas Jaeck, Joseph V. Pulé, Valentin Zagrebnov
We study the perfect Bose gas in random external potentials and show that there is generalized Bose-Einstein condensation in the random eigenstates if and only if the same occurs i…
Long Cycles in a Perturbed Mean Field Model of a Boson Gas
Teunis C. Dorlas, Philippe A. Martin, Joseph V. Pulé
In this paper we give a precise mathematical formulation of the relation between Bose condensation and long cycles and prove its validity for the perturbed mean field model of a Bo…
A Dicke Type Model for Equilibrium BEC Superradiance
Joseph V. Pule, Andre F. Verbeure, Valentin A. Zagrebnov
We study the effect of electromagnetic radiation on the condensate of a Bose gas. In an earlier paper we considered the problem for two simple models showing the cooperative effect…
The Approximating Hamiltonian Method for the Imperfect Boson Gas
Joseph V. Pule, Valentin A. Zagrebnov
The pressure for the Imperfect (Mean Field) Boson gas can be derived in several ways. The aim of the present note is to provide a new method based on the Approximating Hamiltonian…
The Canonical Perfect Bose Gas in Casimir Boxes
Joseph V. Pule, Valentin A. Zagrebnov
We study the problem of Bose-Einstein condensation in the perfect Bose gas in the canonical ensemble, in anisotropically dilated rectangular parallelpipeds (Casimir boxes). We prov…
Characterization of the Spectrum of the Landau Hamiltonian with Delta Impurities
T. C. Dorlas, N. Macris, J. V. Pulé
We consider a random Schrodinger operator in an external magnetic field. The random potential consists of delta functions of random strengths situated on the sites of a regular two…