2008/11/14 by Shannon X. Wang, Jaroslaw Labaziewicz, Yufei Ge +2 · 2 citations
Computer Science · Physics and Astronomy · #Coherence (philosophical gambling strategy) #Coherence time #Field (mathematics) #Ion #Ion trap #Magnetic field #Orbital Angular Momentum in Optics #Quantum Computing Algorithms and Architecture #Quantum Information and Cryptography #Trap (plumbing) #Trapped ion quantum computer #quant-ph
paper · pdf · doi:10.1063/1.3095520
published as Appl. Phys. Lett., vol. 94, 094103 (2009) · 3 pages, 3 figures; submitted to APL
arxiv created 2008/11/14 · openalex publication_date 2009/03/02 · arxiv updated 2010/07/29 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
A dense array of ions in microfabricated traps represents one possible way to scale up ion trap quantum computing. The ability to address individual ions is an important component of such a scheme. We demonstrate individual addressing of trapped ions in a microfabricated surface-electrode trap using a magnetic field gradient generated on-chip. A frequency splitting of 310(2) kHz for two ions separated by 5 μm is achieved. Selective single qubit operations are performed on one of two trapped ions with an average of 2.2(±1.0%) crosstalk. Coherence time is reduced by the magnetic field gradient, but the spin-echo technique effectively restores the coherence time.