Coherent Control of Trapped-Ion Qubits with Localized Electric Fields
R. Srinivas, C. M. Löschnauer, M. Malinowski, A. C. Hughes, Rustin Nourshargh, V. Negnevitsky, D. T. C. Allcock, S. A. King, Clemens Matthiesen, T. P. Harty, C. J. Ballance
Abstract
We present a new method for coherent control of trapped ion qubits in separate interaction regions of a multizone 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 localized 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 localization of the electric field.
Topics & Concepts
Electric fieldQubitPhysicsTrapped ion quantum computerIonField (mathematics)Ion trapRotation (mathematics)Atomic physicsAmplitudeCoherent controlMagnetic fieldPhase (matter)Electric field gradientLaserCondensed matter physicsOpticsQuantum mechanicsQuantumGeometryPure mathematicsMathematicsQuantum error correctionQuantum Information and CryptographyQuantum Computing Algorithms and ArchitectureQuantum and electron transport phenomena