Condensed Matter Physics Seminar
2 p.m., Thursday, November 1, 2001
Room 1201, Physics Building
Gate operations and decoherence issues in solid state quantum computers
Xuedong Hu
(Department of Physics, University of Maryland)
Abstract: We study feasibility issues of various solid state
quantum computers (QC). In particular, I will discuss major decoherence channels
for confined electron spins in solids, which is relevant for quantum dot and
donor electron spin QCs. I will also discuss various possible operational errors
of a quantum dot QC, such as gate errors and inhomogeneity, and how they can be
minimized and corrected. Finally, I will present some preliminary results
regarding the states and the pulse gate of the Cooper pair box variant of
superconducting quantum computers.
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Host: Sankar Das Sarma
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