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arXiv · 2106.07486

Trapped Ion Quantum Computing using Optical Tweezers and Electric Fields

M. Mazzanti·R. X. Schüssler·J. D. Arias Espinoza·Z. Wu·R. Gerritsma·A. Safavi-Naini
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Abstract

We propose a new scalable architecture for trapped ion quantum computing that combines optical tweezers delivering qubit state-dependent local potentials with oscillating electric fields. Since the electric field allows for long-range qubit-qubit interactions mediated by the center-of-mass motion of the ion crystal alone, it is inherently scalable to large ion crystals. Furthermore, our proposed scheme does not rely on either ground state cooling or the Lamb-Dicke approximation. We study the effects of imperfect cooling of the ion crystal, as well as the role of unwanted qubit-motion entanglement, and discuss the prospects of implementing the state-dependent tweezers in the laboratory.

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M. Mazzanti, R. X. Schüssler, J. D. Arias Espinoza, Z. Wu, R. Gerritsma, A. Safavi-Naini. 2021-06-14. Trapped Ion Quantum Computing using Optical Tweezers and Electric Fields. https://doi.org/10.1103/physrevlett.127.260502

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