FREE COFFEE AND DONUTS PROVIDED!
WHAT: Simulation of Quantum Operations in a Three-Level System
WHO: Jason Lee (George Mason University)
WHEN: 3:40PM FRI 26 JUN 09
WHERE: NICH 435
ABSTRACT: Lambda-type three-level systems have been studied as
potential qubits for quantum computation and quantum memory.
Quantum
state manipulation through optically controlled quantum operation plays
an important role in these settings. In order to understand the
physical processes involved and to analyze the state and operation
fidelity we developed a theoretical model based on semi-classical
theory that describes the state evolution of the three-level atom
driven by laser pulses. We investigated the fidelity of the
quantum
operations, which is controlled by laser and atomic parameters in the
process, including atomic coherence time, initial state, frequency
detuning, amplitude, and phase of the laser control pulses. The
simulation encompasses realistic parameters and serves as a powerful
template for exploring a broader range of processes in three-level
systems such as quantum gates.