A high-resolution molecular spin-photon interface at telecommunication wavelengths

• 成果类型: Article
• 署名作者: Weiss, Leah R.; Smith, Grant T.; Murphy, Ryan A.; Golesorkhi, Bahman; Mendez Mendez, Jose A.; Patel, Priya; Niklas, Jens; Poluektov, Oleg G.; Long, Jeffrey R.; Awschalom, David D.
• 署名单位: University of Chicago; University of California System; University of California Berkeley; United States Department of Energy (DOE); Lawrence Berkeley National Laboratory; United States Department of Energy (DOE); Argonne National Laboratory; University of California System; University of California Berkeley; University of California System; University of California Berkeley; University of Chicago; United States Department of Energy (DOE); Argonne National Laboratory; United States Department of Energy (DOE); Argonne National Laboratory
• 刊物名称: SCIENCE
• ISSN/ISSBN: 0036-8075; 1095-9203
• DOI: 10.1126/science.ady8677
• 发表日期: 2025-10-02
• 页码: 76-81
• 关键词: SOLID-STATE SPINS; QUANTUM MEMORY; LATTICE-RELAXATION; entanglement; complexes; coherence; storage; Erbium; QUBITS; ion

摘要

Optically addressable electronic spins in polyatomic molecules are a promising platform for quantum information science, with the potential to enable scalable qubit design and integration through atomistic tunability and nanoscale localization. However, optical state- and site-selection are an open challenge. In this work, we introduce an organo-erbium spin qubit in which narrow (megahertz-scale) optical and spin transitions couple to provide high-resolution access to spin degrees of freedom with telecommunication-frequency light. This spin-photon interface enables demonstration of optical spin polarization and readout that distinguishes between spin states and magnetically inequivalent sites in a molecular crystal. Operation at frequencies compatible with mature photonic and microwave devices provides an opportunity for engineering scalable, integrated molecular spin-optical quantum technologies.