Trapped-Ion Quantum Logic Gates Based on Oscillating Magnetic Fields

Published

August 29, 2008

Author(s)

Christian Ospelkaus, Christopher Langer, Jason Amini, Kenton R. Brown, Dietrich G. Leibfried, David J. Wineland

Abstract

Oscillating magnetic fields and field gradients can be used to implement single-qubit rotations and entangling multi-qubit quantum gates for trapped-ion quantum information processing (QIP). With fields generated by currents in microfabricated surface-electrode traps, it should be possible to achieve gate speeds that are comparable to those of optically induced gates for realistic distances between the ion crystal and the electrode surface. Magnetic-field-mediated gates have the potential to significantly reduce the overhead in laser beam control and motional state initialization compared to current QIP experiments with trapped ions and will eliminate spontaneous scattering, a fundamental source of decoherence in laser-mediated gates.

Citation

Physical Review Letters

Volume

101

Issue

090502

Pub Type

Journals

Download Paper

Local Download

Keywords

ions, las

Citation

Ospelkaus, C. , Langer, C. , Amini, J. , Brown, K. , Leibfried, D. and Wineland, D. (2008), Trapped-Ion Quantum Logic Gates Based on Oscillating Magnetic Fields, Physical Review Letters, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=842480 (Accessed November 21, 2024)