Prof. Raymond Laflamme

Institute for Quantum Computing (IQI)
University of Waterloo

Overview of NMR quantum information processing and recent experiments.

I will give a brief overview of recent experimental results using NMR technology and focus in particular on three of them: the manipulation of ten qubits in the liquid state, algorithmic cooling and an efficient characterization of noise in quantum systems. Algorithmic cooling is a method to efficiently remove entropy from a system. I will describe how this can be done thinking about it as a computation and show experimental results demonstrating multiple rounds of heat-bath algorithmic cooling. I will also describe a second set of experiments that uses a general symmetrisation method that allows for direct experimental characterisation of relevant features of the noise. This framework was applied to develop an efficient experimental protocol for estimating multi-body correlations in the noise. I will show result from an experiment implementing these ideas.

Seminar schedule: http://www.physics.rutgers.edu/qcg/Seminars.html