Le mouvement d'une particule libre se déplaçant sur la surface d'un cône est étudié par l'intégrale de chemins de Feynman. La contrainte qui oblige la particule à rester sur la surface du cône est remplacée par l'introduction ...

Dans ce travail nous étudions le Ring-shaped non-spherical oscillator qui est un potentiel non central, séparable en coordonnées sphériques, dans le cadre de la méthode de Padgett et Leacock. L’application de la condition ...

A new approach generalizing the geometrical concepts describing gravity is proposed. As an application, It is shown that the f(R) and other modified theories of gravity are special cases

A new scenario for a primordial magnetic field is proposed and its evolution is presented. Signatures on the cosmic microwave background spectrum are also discussed

Generalizing the linearization procedure used by Dirac and later by Lévy-Leblond, we derive the first-order non-relativistic wave equation for a particle of spin 3/2 starting from the Schrödinger equation. By the ...

We use the coherent state path integral and an angular model for the spin to solve the generalized Jaynes-Cummings model with a pseudo-hermitian Hamiltonian and a nonlinear Kerr cavity. The propagators are given explicitly ...

The entanglement entropy of pure states is discussed within a cosmological non commutative 2D de Sitter space-time. The obtained results are shown to depend strongly on the sign and values of the non commutativity ...

The consideration of the three-body monopole effects can solve the spectroscopic problems resulting from the failure of the two body realistic interactions to reproduce some nuclear properties. In the framework of studying ...

A model of the Lyra universe is presented. Using the tunneling effect pproach, the Hawking radiation temperature near the black hole horizon is calculated