Experimental implementation of high-fidelity unconventional geometric quantum gates using an NMR interferometer

Jiangfeng Du, Ping Zou, Z. D. Wang
2006 Physical Review A. Atomic, Molecular, and Optical Physics  
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: γ_d=α_g+ηγ _g, where γ_d and γ_g are respectively the dynamic and geometric phases accumulated in the quantum gate operation, with η as a constant and α_g being dependent only on the geometric feature of the operation. More arrestingly, we demonstrate the first experiment to implement a universal set of such
more » ... kind of generalized unconventional geometric quantum gates with high fidelity in an NMR system.
doi:10.1103/physreva.74.020302 fatcat:x6b4stodyvfrvhfbqlj3i2u7ya