http://depot.umc.edu.dz/handle/123456789/12694 2026-04-30T22:42:20Z http://depot.umc.edu.dz/handle/123456789/12720 GENERAL SYSTEM PARAMETERS OF A DISSIPATIVE TWO-MODES SQUEEZED STEADY STATE HOUHOU, O; FERRARO, A; AISSAOUI, H We give the most general Hamiltonian and dissipative channels for an open quantum system that contains two modes, and interacts with the environment via two dissipative channels, in such a manner that the system is maintained to have a two modes squeezed steady state. An optomechanical system implementation is also given 2013-12-16T00:00:00Z http://depot.umc.edu.dz/handle/123456789/12719 SOME APPLICATIONS OF NON COMMUTATIVE SPACE-TIME STANDARD MODEL HAFFAR, B; BENABBES, O The Seiberg-Witten non commutative space-time approach is applied to the electroweak standard model. Some applications for the production of the Z gauge boson et the LHC are also discussed 2013-12-16T00:00:00Z http://depot.umc.edu.dz/handle/123456789/12718 NEW APPROACHS TO THE GEOMETRICAL CONCEPTS OF THE GRAVITATION THEORY AND APPLICATIONS BENDJOUDI, A; MEBARKI, N 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 2013-12-16T00:00:00Z http://depot.umc.edu.dz/handle/123456789/12717 ENTANGLEMENT IN A CURVED NCG DE SITTER SPACE-TIME AISSAOU, H; GHITI, M.F The entanglement in a curved NCG de Sitter space-time is developed and presented. Some new features from the space non commutativity are also discussed 2013-12-16T00:00:00Z