ar X iv : m at h - ph / 0 20 70 30 v 1 2 2 Ju l 2 00 2 Particles and Anti - Particles in a Relativistic Bose Condensate Luca

ar X iv : m at h - ph / 0 60 70 40 v 1 2 0 Ju l 2 00 6 Invariant Form of BK - factorization and its Applications

ar X iv : h ep - t h / 06 03 15 5 v 1 2 0 M ar 2 00 6 Quantum Field Theory : Where We Are

We comment on the present status, the concepts and their limitations, and the successes and open problems of the various approaches to a relativistic quantum theory of elementary particles, with a hindsight to questions concerning quantum gravity and string theory.

ar X iv : c on d - m at / 0 40 73 63 v 3 2 9 Ju n 20 05 Einstein - Podolsky - Rosen correlations via dissociation of a molecular Bose - Einstein condensate

Recent experimental measurements of atomic intensity correlations through atom shot noise suggest that atomic quadrature phase correlations may soon be measured with a similar precision. We propose a test of local realism with mesoscopic numbers of massive particles based on such measurements. Using dissociation of a Bose-Einstein condensate of diatomic molecules into bosonic atoms, we demonstr...

ar X iv : 0 70 7 . 33 03 v 1 [ m at h . O A ] 2 3 Ju l 2 00 7 OPERATOR - VALUED FRAMES

ar X iv : h ep - t h / 04 05 27 2 v 2 3 1 Ju l 2 00 4 Two fermion relativistic bound states

We consider the relativistic quantum mechanics of a two interacting fermions system. We first present a covariant formulation of the kinematics of the problem and give a short outline of the classical results. We then quantize the system with a general interaction potential and deduce the explicit equations in a spherical basis. The case of the Coulomb interaction is studied in detail by numeri...