PhD thesis pre-submission seminar by Ms. Rabia Tahira from Department of Physics, CIIT, Islamabad, is arranged by the department. The details are as follows:
Title: Entanglement: Engineering and its Dynamical Studies in Dissipative Environments
Venue: Department of Physics Seminar Room, Physics Block
Date: December 16, 2011 (Friday)
Time: 10:30 am
We studied the entanglement generation and entanglement dynamics in dissipative environments for bipartite systems. The subject of entanglement generation is studied in continuous variable systems for initial single-mode Gaussian states using beam splitters and in quantum beat lasers. The role of different parameters in the presence of thermal noise on the entanglement generation is explored, for example, the nonclassicality and purity of single-mode Gaussian state; and angle of beam splitter or driving field strength in quantum beat laser are important for robust entanglement generation. The entanglement dynamics is studied for different two-qubit systems, atoms and fields inside the cavities surrounded by the thermal environment. In the two-qubit atomic systems, the atoms are considered close together so that the atoms may exchange energy, thus the role of collective damping and dipole-dipole interaction becomes important. Further, we studied that entanglement may be generated for initial separable states in thermal environment. For the entangled field states in thermal environment, we considered the high dimensional cases concluding that sudden death of entanglement always occur for these cases.
It will be an open session for all students and faculty. Therefore, all are requested to participate. Graduate students are specifically encouraged to attend it.
The members of Departmental Graduate Advisory Committee are requested to kindly ensure their presence.