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MOPTA 05
July 25-27, 2005, Windsor ON Canada
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MOPTA 05 Presentation Information


Title:
Optimal Control of Laser-atom interactions for Quantum Computing
Presenter:
Dr. Chitra Rangan
Presenter's Affiliation:
Department of Physics, University of Windsor
Presenter's E-mail address:
rangan@uwindsor.ca
Authors:
C. Rangan, Department of Physics, University of Windsor; P.H. Bucksbaum, Department of Physics and NSF FOCUS Frontiers Center, The University of Michigan; A.M. Bloch, Department of Mathematics, The University of Michigan.
Abstract (100 words or less):
We present theoretical and computation results for the optimization of the laser field that can perform a quantum algorithm (Grover's search algorithm) in an alkali atom. This is an important result because the quantum search algorithm scales as the square-root of the size of the database (N), whereas the best classical algorithm scales only as N/2. For the first time, we extend optimal control theory to optimize algorithms (distinct from multi-target optimization), and use it to design electromagnetic fields that can perform fast and efficient quantum algorithms ( C. Rangan and P.H. Bucksbaum, Physical Review A v.64 , p.33417 (2001).)