Erasure cooling, control, and hyperentanglement of motion in optical tweezers

• 成果类型: Article
• 署名作者: Shaw, Adam L.; Scholl, Pascal; Finkelstein, Ran; Tsai, Richard Bing-Shiun; Choi, Joonhee; Endres, Manuel
• 署名单位: California Institute of Technology; Stanford University; Tel Aviv University
• 刊物名称: SCIENCE
• ISSN/ISSBN: 0036-8883
• DOI: 10.1126/science.adn2618
• 发表日期: 2025-05-22
• 页码: 845-849
• 关键词: quantum error-correction; conversion; STATES; qubit

摘要

Coherently controlling the motion of single atoms in optical tweezers would enable new applications in quantum information science. To demonstrate this, we first prepared atoms in their motional ground state using a species-agnostic cooling mechanism that converts motional excitations into erasures, errors with a known location. This cooling mechanism fundamentally outperforms idealized traditional sideband cooling, which we experimentally demonstrated. By coherently manipulating the resultant pure motional state, we performed mid-circuit readout and mid-circuit erasure detection through local shelving into motional superposition states. We lastly entangled the motion of two atoms in separate tweezers and generated hyperentanglement by preparing a simultaneous Bell state of motional and optical qubits, unlocking a large class of quantum operations with neutral atoms.