Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Trapped-Ion Quantum Logic Gates Based on Oscillating Magnetic Fields

Published

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

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 October 28, 2021)
Created August 29, 2008, Updated February 17, 2017