Spatially uniform single-qubit gate operations with near-field microwaves and composite pulse compensation

Journal Article (Journal Article)

We present a microfabricated surface-electrode ion trap with a pair of integrated waveguides that generate a standing microwave field resonant with the 171Yb+ hyperfine qubit. The waveguides are engineered to position the wave antinode near the center of the trap, resulting in maximum field amplitude and uniformity along the trap axis. By calibrating the relative amplitudes and phases of the waveguide currents, we can control the polarization of the microwave field to reduce off-resonant coupling to undesired Zeeman sublevels. We demonstrate single-qubit π-rotations as fast as 1 μs with less than 6% variation in Rabi frequency over an 800 μm microwave interaction region. Fully compensating pulse sequences further improve the uniformity of X-gates across this interaction region. © IOP Publishing and Deutsche Physikalische Gesellschaft.

Full Text

Duke Authors

Cited Authors

  • Shappert, CM; Merrill, JT; Brown, KR; Amini, JM; Volin, C; Doret, SC; Hayden, H; Pai, CS; Harter, AW

Published Date

  • August 1, 2013

Published In

Volume / Issue

  • 15 /

International Standard Serial Number (ISSN)

  • 1367-2630

Digital Object Identifier (DOI)

  • 10.1088/1367-2630/15/8/083053

Citation Source

  • Scopus