Nelsonian Mechanics Revisited *

The Measurement Problem in Quantum Mechanics Revisited

The Abdus Salam International Centre for Theoretical Physics the Vacuum Structure, Special Relativity Theory and Quantum Mechanics Revisited: a Field Theory-no-geometry Approach

The main fundamental principles characterizing the vacuum field structure are formulated, the modeling of the related vacuum medium and charged point particle dynamics by means of devised field theoretic tools are analyzed. The Maxwell electrodynamic theory is revisited and newly derived from the suggested vacuum field structure principles, the classical special relativity theory relationship b...

Classical Mechanics Revisited

Two linear algebra based strategies are presented to deal with general classical mechanics problems with constraints. Classical concepts such as holonomic and nonholonomic constraints, virtual displacements, principle of virtual work, Hamilton’s principle and method of Lagrange multipliers are critiqued.

Wave-Particle Duality and the Hamilton Action

The Hamilton-Jacobi equation of relativistic quantum mechanics is revisited. The equation is shown to permit solutions in the form of breathers (oscillating/spinning solitons), displaying simultaneous particle-like and wave-like behaviour. PACS: 03.65-w, 03.65Pm, 03.65.-b

9 v 1 2 1 A ug 2 00 3 1 “ Point - form ” estimate of the pion form factor revisited

The pion form factor calculation in the " point-form " of relativistic quantum mechanics is reconsidered. Particular attention is given to the relation between the momentum of the system and the momentum transfer as well as to the quark current.