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Updated: May 18, 2026

Generation and Coherent Control of Pulsed Quantum Frequency Combs
Published on: June 8, 2018
Coherent error suppression in multiqubit entangling gates
D Hayes1, S M Clark, S Debnath
1Joint Quantum Institute and Department of Physics, University of Maryland, College Park, Maryland 20742, USA. dhayes12@umd.edu
Abstract:
We demonstrate a simple pulse shaping technique designed to improve the fidelity of spin-dependent force operations commonly used to implement entangling gates in trapped ion systems. This extension of the Mølmer-Sørensen gate can theoretically suppress the effects of certain frequency and timing errors to any desired order and is demonstrated through Walsh modulation of a two qubit entangling gate on trapped atomic ions. The technique is applicable to any system of qubits coupled through collective harmonic oscillator modes.
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