http://depot.umc.edu.dz/handle/123456789/12694 Thu, 30 Apr 2026 22:42:28 GMT 2026-04-30T22:42:28Z 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 Mon, 16 Dec 2013 00:00:00 GMT http://depot.umc.edu.dz/handle/123456789/12720 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 Mon, 16 Dec 2013 00:00:00 GMT http://depot.umc.edu.dz/handle/123456789/12719 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 Mon, 16 Dec 2013 00:00:00 GMT http://depot.umc.edu.dz/handle/123456789/12718 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 Mon, 16 Dec 2013 00:00:00 GMT http://depot.umc.edu.dz/handle/123456789/12717 2013-12-16T00:00:00Z