2005/12/05 by J. Du, P. Zou, Z. D. Wang · 1 citation
Physics and Astronomy · #quant-ph
paper · pdf · doi:10.1103/physreva.74.020302
published as Phys. Rev. A 74, 020302 (2006) · 4 pages, 3 figures
arxiv created 2005/12/05 · arxiv updated 2009/12/01
Following a key idea of unconventional geometric quantum computation developed earlier [Phys. Rev. Lett. 91, 197902 (2003)], here we propose a more general scheme in such an intriguing way: γd=αg+ηγg, where γd and γg are respectively the dynamic and geometric phases accumulated in the quantum gate operation, with η as a constant and αg being dependent only on the geometric feature of the operation. More arrestingly, we demonstrate the first experiment to implement a universal set of such kind of generalized unconventional geometric quantum gates with high fidelity in an NMR system.