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Lorenza Viola

Dartmouth College

Dynamically Error-Corrected Universal Quantum Gates

November 19, 2008 - 3:30-3:55pm

RLE Conference Center 36-428

Scalable quantum computation in realistic devices requires that an unprecedented level of control over quantum dynamics can be achieved in the presence of unavoidable decoherence and operational errors. In this talk, I will outline a constructive procedure for designing a universal set of robust unitary gates on an open quantum system without encoding or measurement overhead. These results allow for a low-level error correction strategy solely based on Hamiltonian control under realistic constraints, and may prove instrumental to reduce implementation requirements for fault-tolerant quantum computing architectures.


Lorenza Viola obtained a Master degree in physics from the University of Trento, Italy, in 1991, and a Ph.D. in physics from the University of Padova, Italy, in 1996. After being a postdoc in the Department of Mechanical Engineering at MIT from 1997 to 2000, and a J.R. Oppenheimer Fellow in the Computer and Computational Sciences Division at Los Alamos National Laboratory, in 2004 she joined the Department of Physics and Astronomy at Dartmouth College as an Associate Professor. Dr. Viola's research addresses a broad range of issues within theoretical quantum information physics, with emphasis on modeling and control of complex quantum systems, and problems at the interface between quantum information theory and quantum statistical mechanics. Currently, she is serving as the Chair of the Topical Group on Quantum Information of the American Physical Society.