65 research outputs found
Addressing atoms in optical lattices with Bessel beams
A method of synthesizing localized optical fields with zeroes on a periodic
lattice is analyzed. The applicability to addressing atoms trapped in optical
lattices with low crosstalk is discussed.Comment: 4 pages, 2 figure
Efficient Grover search with Rydberg blockade
We present efficient methods to implement the quantum computing Grover search
algorithm using the Rydberg blockade interaction. We show that simple pi-pulse
excitation sequences between ground and Rydberg excited states readily produce
the key conditional phase shift and inversion-about-the mean unitary operations
for the Grover search. Multi-qubit implementation schemes suitable for
different properties of the atomic interactions are identifed and the error
scaling of the protocols with system size is found to be promising for
immediate experimental investigation.Comment: Detailed description of algorithm for sub-register architecture.
Error budget modified for Cs atomic parameters. To appear in J. Phys. B.
Special Issue on Strong Rydberg interactions in ultracold atomic and
molecular gase
Velocity Measurement by Scattering from Index of Refraction Fluctuations Induced in Turbulent Flows
Induced phase screen scattering is defined as scatter light from a weak index of refraction fluctuations induced by turbulence. The basic assumptions and requirements for induced phase screen scattering, including scale requirements, are presented
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