"Quantum Information Processing with Prethreshold Superconducting Qubits"Michael R. Geller , University of Georgia [Host: Eugene Kolomeisky ]
ABSTRACT:
I will discuss an alternative approach to quantum computation and simulation
that is ideally suited for today's subthresholdfidelity qubits, especially in
superconducting architectures. This approach makes use of the the ndimensional
singleexcitation subspace (SES) of a system of n tunably coupled qubits.
Although technically unscalable and inefficient in terms of the number of qubits
required, the SES approach allows ndimensional unitary operations to be
implemented in a single shot, without the need to decompose into gates. The real
power of this approach is probably in its application to quantum simulation,
and I will show that for a particular class of timedependent quantum simulation
problems a practical device that would vastly outperform classical machines
is within experimental reach.

Condensed Matter Seminar Thursday, February 17, 2011 3:30 PM Physics Building, Room 204 Note special room. 
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