Robust Entanglement Gates for Trapped-Ion Qubits
- 1 November 2018
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 121 (18), 180502
- https://doi.org/10.1103/physrevlett.121.180502
Abstract
High-fidelity two-qubit entangling gates play an important role in many quantum information processing tasks and are a necessary building block for constructing a universal quantum computer. Such high-fidelity gates have been demonstrated on trapped-ion qubits; however, control errors and noise in gate parameters may still lead to reduced fidelity. Here we propose and demonstrate a general family of two-qubit entangling gates which are robust to different sources of noise and control errors. These gates generalize the renowned Mølmer-Sørensen gate by using multitone drives. We experimentally implemented several of the proposed gates on ions trapped in a linear Paul trap and verified their resilience.
Funding Information
- Israel Science Foundation
- Ministry of Science and Technology, Israel
- H2020 European Research Council (616919)
- Crown Photonics Center
- ICore-Israeli excellence center circle of light
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