Dirac particle in plane wave field and the semi-classical approximation

Department de Physique, Faculte de Sciences, Mentouri University, Route Ain el Bey, Constantine 25000, Algeria; soufi-net(at)caramail.com

Received 8 June 2004, accepted 17 August 2004 by U. Eckern

Quantum phase diagram for homogeneous Bose-Einstein condensate

FU Berlin / Yale University / Universität Duisburg-Essen; pelster(at)uni-essen.de

Received 12 June 2004, accepted 24 August 2004 by U. Eckern

Quadratic metric-affine gravity

Mathematical Sciences, University of Bath, Bath BA2 7AY, United Kingdom; D.Vassiliev(at)bath.ac.uk

Received 5 July 2004, revised 16 August 2004, accepted 12 September 2004 by F. W. Hehl

On the interaction of mesoscopic quantum systems with gravity

Universität zu Köln, Institut für Theoretische Physik, Zülpicher Str. 77, 50937 Köln, Germany;
kiefer(at)thp.uni-koeln.de

Received 3 August 2004, revised 22 September 2004, accepted 23 September 2004 by F. W. Hehl