Li Ziqian, Roy Tanay, Lu Yao, Kapit Eliot, Schuster David I
James Franck Institute, University of Chicago, Chicago, IL, USA.
Department of Physics, University of Chicago, Chicago, IL, USA.
Nat Commun. 2024 Aug 14;15(1):6978. doi: 10.1038/s41467-024-51262-4.
Reservoir engineering is a powerful technique to autonomously stabilize a quantum state. Traditional schemes involving multi-body states typically function for discrete entangled states. In this work, we enhance the stabilization capability to a continuous manifold of states with programmable stabilized state selection using multiple continuous tuning parameters. We experimentally achieve 84.6% and 82.5% stabilization fidelity for the odd and even-parity Bell states as two special points in the manifold. We also perform fast dissipative switching between these opposite parity states within 1.8 μs and 0.9 μs by sequentially applying different stabilization drives. Our result is a precursor for new reservoir engineering-based error correction schemes.
储能器工程是一种自主稳定量子态的强大技术。涉及多体态的传统方案通常适用于离散纠缠态。在这项工作中，我们通过使用多个连续调谐参数进行可编程稳定态选择，将稳定能力提高到连续的态流形。作为流形中的两个特殊点，我们通过实验实现了奇宇称和偶宇称贝尔态84.6%和82.5%的稳定保真度。我们还通过依次应用不同的稳定驱动，在1.8 μs和0.9 μs内实现了这些相反宇称态之间的快速耗散切换。我们的结果是基于储能器工程的新纠错方案的先驱。
