Coherent manipulation of interacting electron qubits on solid neon

• URL: http://arxiv.org/abs/2503.23738v2
• Date: Tue, 08 Apr 2025 02:55:28 GMT
• Title: Coherent manipulation of interacting electron qubits on solid neon
• Authors: Xinhao Li, Yizhong Huang, Xu Han, Xianjing Zhou, Dafei Jin,
• Abstract summary: Single electron-on-solid-neon (eNe) charge qubits have shown extraordinarily long coherence times and high operation fidelities.<n>Two-qubit gates in this platform is the next major step for realistic quantum information processing.
• Score: 6.620431222287995
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Solid neon has emerged as a pristine material host for electron qubits. Single electron-on-solid-neon (eNe) charge qubits have shown extraordinarily long coherence times and high operation fidelities. Realizing two-qubit gates in this platform is the next major step for realistic quantum information processing. In this work, we demonstrate frequency- and time-domain coherent manipulation of multiple eNe charge qubits that are coupled by charge interactions. Cross-resonance and bSWAP two-qubit gates are implemented, laying the foundation for universal quantum computing. An inter-qubit coupling strength exceeding 60~MHz has been observed, promising fast gate speed and suppressed infidelity. These results highlight the potential to scale up the eNe qubit platform toward universal quantum computing.

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