A microfabricated ion trap with integrated microwave circuitry

Authors :: Allcock, D. T. C.
Harty, T. P.
Ballance, C. J.
Keitch, B. C.
Linke, N. M.
Stacey, D. N.
Lucas, D. M.
Source :: Appl. Phys. Lett. 102, 044103 (2013)
Publication Year :: 2012
Abstract: We describe the design, fabrication and testing of a surface-electrode ion trap, which incorporates microwave waveguides, resonators and coupling elements for the manipulation of trapped ion qubits using near-field microwaves. The trap is optimised to give a large microwave field gradient to allow state-dependent manipulation of the ions' motional degrees of freedom, the key to multiqubit entanglement. The microwave field near the centre of the trap is characterised by driving hyperfine transitions in a single laser-cooled 43Ca+ ion.<br />Comment: 4 pages, 5 figures