Seminarium Optyczne

I examine the method of composite pulses and its application for quantum control.The technique of composite pulses uses a sequence of pulses with relative phases, used as control parameters. I show how composite pulses can be used to improve different adiabatic techniques (RAP and STIRAP). Then I show how one can construct simple quantum gates, using composite pulses. As an example I examine the two-state quantum phase gate. Finally, I present a method to construct ultra-broadband and ultra-narrowband composite pulses, which produce better excitation profiles at the expense of a finite error tolerance.