Erik Sjöqvist

Erik Sjöqvist received his B.Sc. in 1988 and Ph.D. in 1995, both at Uppsala University, Sweden. During 1996–1999, he carried out post-doctoral research at University of Durham, UK, and Oxford University, UK, as well as at the Atomic Institute in Vienna. Dr Sjöqvist returned to Uppsala University in 2000 as a junior researcher, financed by the Swedish research council, and was appointed professor in 2005. His main research interests include geometric and topological phases with applications to quantum information theory and quantum interferometry. He has developed and taught a wide range of physics courses at both undergraduate and graduate levels. Dr Sjöqvist has published about 60 refereed articles.

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A new phase in quantum computation

November 17, 2008

Large-scale quantum computers are hard to construct because quantum systems easily lose their coherence through interaction with the environment. Researchers have tried to avoid this problem by using geometric phase shifts in the design of quantum gates to perform information processing. Experiments and simulations have shown that these gates may be tolerant to certain types of faults, and may therefore be useful for robust quantum computation. Read More »