Optical observation of single spins in silicon

Article

关键词: ELECTRON-SPIN;    QUANTUM;    QUBIT;    ERBIUM;   

DOI  :  10.1038/s41586-022-04821-y

来源: SCIE

【 摘 要 】

The global quantum internet will require long-lived, telecommunications-band photon-matter interfaces manufactured at scale(1). Preliminary quantum networks based on photon-matter interfaces that meet a subset of these demands are encouraging efforts to identify new high-performance alternatives(2). Silicon is an ideal host for commercial-scale solid-state quantum technologies. It is already an advanced platform within the global integrated photonics and microelectronics industries, as well as host to record-setting long-lived spin qubits(3). Despite the overwhelming potential of the silicon quantum platform, the optical detection of individually addressable photon-spin interfaces in silicon has remained elusive. In this work, we integrate individually addressable 'T centre' photon-spin qubits in silicon photonic structures and characterize their spin-dependent telecommunications-band optical transitions. These results unlock immediate opportunities to construct silicon-integrated, telecommunications-band quantum information networks.

【 授权许可】

Free