一种基于固体氖电子的新型固态量子位
日期：2024/02/18 - 2024/02/18
学术讲座：一种基于固体氖电子的新型固态量子位
主讲人：Xinhao Li, postdoc in the Nanoscience and Technology division of Argonne National Laboratory
时间：2024年2月18日（周日）上午9:00
讲座摘要
Quantum science and technology hold the potential to profoundly impact our society by revolutionizing how we process, transfer, and analyze data. Central to this evolution is the pivotal role of engineering qubit-environmental interactions to facilitate accurate and scalable connections between quantum elements. Existing quantum architectures face challenges in this regard, such as decoherence channels like two-level systems within material substrates in circuit quantum electrodynamic (QED) architectures, posing a threat to data stability and system scalability. In this talk, I'll showcase the utilization of thin solid neon film as a clean interface for single-electron qubits within quantum circuits. This breakthrough has enabled us to significantly enhance the lifetime, control preciseness, and scalability of electron charge qubits by minimizing the impact of environmental impurities. We achieve strong coupling between the trapped single-electron qubits and microwave photons in an on-chip superconducting resonator. The measured relaxation time T_1 and coherence time T_2 are both on the order of 0.1 milliseconds, supporting high-fidelity single-shot qubit readout (F_read=98.1%) and control (F_gate=99.97%). We further demonstrated the first step towards achieving two-qubit entanglement by coupling two electrons to the same resonator. Looking ahead, I envision building scalable and hybridized quantum devices via synergetic engineering of electron qubits and nano-mechanical/photonic interfaces for quantum information science and technology.
主讲人简介
Xinhao Li is a postdoc in the Nanoscience and Technology division of Argonne National Laboratory. He received his Ph.D. in Mechanical Engineering from the Massachusetts Institute of Technology, supervised by Prof. Nicholas Fang, and joined Argonne in 2021, working with Prof. Dafei Jin and Prof. David I. Schuster. His research interests include quantum and nano-electronics & photonics, superconducting circuits, and quantum liquids & solids. His current research focuses on developing mK quantum electronics with solid Neon for scalable and high-fidelity quantum information processing.