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Q: Fachverband Quantenoptik und Photonik

Q 29: Implementations: Ions and Atoms (joint session QI/Q)

Q 29.4: Talk

Wednesday, March 8, 2023, 12:00–12:15, F428

Coherent Control of Trapped Ion Qubits with Localized Electric Fields — •Raghavendra Srinivas^1,2, Clemens Löschnauer¹, Maciej Malinowski¹, Amy Hughes¹, Rustin Nourshargh¹, Vlad Negnevitsky¹, David Allcock^1,3, Steven King¹, Clemens Matthiesen¹, Thomas Harty¹, and Chris Ballance^1,2 — ¹Oxford Ionics — ²University of Oxford — ³University of Oregon, Eugene

We present a new method for coherent control of trapped ion qubits in separate interaction regions of a multi-zone trap by simultaneously applying an electric field and a spin-dependent gradient. Both the phase and amplitude of the effective single-qubit rotation depend on the electric field, which can be localised to each zone. We demonstrate this interaction on a single ion using both laser-based and magnetic field gradients in a surface-electrode ion trap, and measure the localisation of the electric field.

[1] arXiv:2210.16129