Strong-coupling quantum logic of trapped ions

Abstract

Essentially all known quantum gates rely on a weak-coupling approximation resulting in linear dynamics. With the explicit example of trapped ions, we show how high-fidelity quantum gates can be achieved outside such an approximation, and we derive readily implementable driving fields to realize gates with extremely high fidelities for ions well outside the Lamb-Dicke regime with motional temperatures achievable by only Doppler cooling.

arXiv comment4 pages and supplement, 3 figures

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Cited by in corpus (5)

• Noisy intermediate-scale quantum computers
• Quantum control methods for robust entanglement of trapped ions
• Robust two-qubit trapped ions gates using spin-dependent squeezing
• Generally noise-resilient quantum gates for trapped-ions
• Robust Oscillator-Mediated Phase Gates Driven by Low-Intensity Pulses