Nonextensive Bose–Einstein condensation model

On the theory of BoseEinstein condensation of quasiparticles: on the possibility of condensation of ferromagnons at high temperatures

The Bose condensation of magnons in physical systems of finite size is considered for the case of ferromagnetic thin films. It is shown that in accordance with present-day experimental capabilities, which permit one to achieve densities of longwavelength spin excitations of ∼ 1018 – 1019 −3 , in such films, the formation of a coherent condensate of such quasiparticles begins at temperatures T ∼...

Pathway Model and Nonextensive Statistical Mechanics

Special Edition “2015 UN/Japan Workshop on Space Weather” 157 Pathway Model and Nonextensive Statistical Mechanics A.M. Mathai, H.J. Haubold , C. Tsallis 5 1 Department of Mathematics and Statistics, McGill University, Quebec, Canada 2 Centre for Mathematical and Statistical Sciences, Kerala, India 3 Office for Outer Space Affairs, United Nations, Vienna, Austria 4 Centro Brasileiro de Pesquisa...

A nonextensive approach to Bose-Einstein condensation of trapped interacting boson gas

In the Bose-Einstein condensation of interacting atoms or molecules such as Rb, Na and Li, the theoretical understanding of the transition temperature is not always obvious due to the interactions or zero point energy which cannot be exactly taken into account. The S-wave collision model fails sometimes to account for the condensation temperatures. In this work, we look at the problem within th...

Condensation in a Model

Condensation in the Backgammon model

Given the success of the dynamical triangulation approach to simulating two dimensional quantum gravity [1], there has been a concerted effort to employ similar methods in understanding higher dimensional discretized gravity models [2]. In three and four dimensions one does not have the underpinning of matrix models to give confidence in the simulation results, but the general phase diagram of ...