Quantum optimal control(what controls? what optimal controls?) and molecular Photo-association simulations
소속 :
연사 : Dr. Tak-San Ho( Department of Chemistry, Princeton university)
일시 : 2012-03-27 16:00 ~
장소 : 502동 227호
일 시 : 2012년 3월 27일, 4:00 PM
장 소 : 502동 227호
-Abstract-
Quantum optimal control is concerned with finding best possible control fields to actively manipulate the dynamics of quantum systems. In the past two decades, extensive theoretical and experimental studies have been made on the quantum control of dynamics at the atomic and molecular scale. Experimental evidence and numerous simulations showed that effective quantum controls in diverse applications appear surprisingly easy to find.
the control of photo-association(PA) processes is a theme of considerable interest with the basic case consisting of two colliding atoms interacting with an applied field to create a molecule. PA is a fundamental aspect of the laser control of chemical reactions providing a means to create cold molecules starting from cooled atoms. Optimally Shaped Laser Pulses are especially attractive for controlling PA dynamics because they provide Broad Bandwidth with frequency components that can be manipulated simultaneously.
In this talk, based on the optimal control theory, we explore the optimization of laser pulses for the control of PA and vibrational stabilization. Simulation results using monotonically convergent algorithms are presented. The optimal control goal is to drive the transition from the colliding atoms to the vibrational ground level of the diatomic molecule. Very high yields were obtained in the molecular vibrational ground level.
장 소 : 502동 227호
-Abstract-
Quantum optimal control is concerned with finding best possible control fields to actively manipulate the dynamics of quantum systems. In the past two decades, extensive theoretical and experimental studies have been made on the quantum control of dynamics at the atomic and molecular scale. Experimental evidence and numerous simulations showed that effective quantum controls in diverse applications appear surprisingly easy to find.
the control of photo-association(PA) processes is a theme of considerable interest with the basic case consisting of two colliding atoms interacting with an applied field to create a molecule. PA is a fundamental aspect of the laser control of chemical reactions providing a means to create cold molecules starting from cooled atoms. Optimally Shaped Laser Pulses are especially attractive for controlling PA dynamics because they provide Broad Bandwidth with frequency components that can be manipulated simultaneously.
In this talk, based on the optimal control theory, we explore the optimization of laser pulses for the control of PA and vibrational stabilization. Simulation results using monotonically convergent algorithms are presented. The optimal control goal is to drive the transition from the colliding atoms to the vibrational ground level of the diatomic molecule. Very high yields were obtained in the molecular vibrational ground level.
