Quantum logic approach to wave packet control

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DOIResolve DOI: http://doi.org/10.1103/PhysRevLett.91.237901
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Journal titlePhysical Review Letters
Pages237901–; # of pages: 1
AbstractWe study control of wave packets with a finite accuracy, approaching it as quantum information processing. For a given control resolution, we define the analogs of several quantum bits within the shape of a single wave packet. These bits are based on wave packet symmetries. Analogs of one- and two-bit gates can be implemented using only free wave packet evolution and coordinate-dependent ac Stark shifts applied at the moments of fractional revivals. As in quantum computation, the gates form a logarithmically small set of basis operations which can be used to approximate any unitary transformation desired for quantum control of the wave packet dynamics. Numerical examples show the application of this approach to control vibrational wave packet revivals.
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AffiliationNational Research Council Canada; NRC Steacie Institute for Molecular Sciences
Peer reviewedYes
NPARC number12327445
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Record identifier1e72510d-47a2-4945-b9bb-331d26e1cbd0
Record created2009-09-10
Record modified2016-05-09
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