Marc Feldman, 1945-2007 Rochester Marc J. Feldman, professor and scientist in the Department of Electrical and Computer Engineering at the University of Rochester, passed away December 4, 2007 at age 62. Feldman was a founder and early pioneer in the field of superconducting quantum computing. As leader of the Superconducting Electronics Laboratory at Rochester, he led a number of major projects to explore advanced computing concepts. "Marc will be missed tremendously by all, not only was he an outstanding scientist in his own right but he was a generous and prolific scientific collaborator. His deep love of science, boundless intellectual energy and gentle sense of humor made it truly a privilege and a pleasure to call Marc our colleague and friend." – Mark Bocko
Experimental demonstration of Berry's Phase in a solid-state qubit Zürich|Waterloo|Sherbrooke|Yale In Science, arXiv preprint, and concomitant ETH-Zürich report "Geometry for Quantum Computers," researchers in collaboration with the Quantum Device Lab have demonstrated Berry's phase in solid-state circuit quantum electrodynamics, an approach which is inherently robust against certain types of errors. "Geometric phase has been argued to have potential fault tolerance. We demonstrate the controlled accumulation of geometric phase, Berry's phase, in a superconducting qubit, manipulating the qubit geometrically using microwave radiation, and observe the accumulated phase in an interference experiment. "