Coherent control of a nuclear spin via interactions with a rare-earth ion in the solid-state

Abstract

Individually addressed Er${}^{3+}$ ions in solid-state hosts are promising resources for quantum repeaters, because of their direct emission in the telecom band and compatibility with silicon photonic devices. While the Er${}^{3+}$ electron spin provides a spin-photon interface, ancilla nuclear spins could enable multi-qubit registers with longer storage times. In this work, we demonstrate coherent coupling between the electron spin of a single Er${}^{3+}$ ion and a single $I=1/2$ nuclear spin in the solid-state host crystal, which is a fortuitously located proton (${}^1$H). We control the nuclear spin using dynamical decoupling sequences applied to the electron spin, implementing one- and two-qubit gate operations. Crucially, the nuclear spin coherence time exceeds the electron coherence time by several orders of magnitude, because of its smaller magnetic moment. These results provide a path towards combining long-lived nuclear spin quantum registers with telecom-wavelength emitters for long-distance quantum repeaters.

References in corpus (30)

• Quantum sensing
• Observation of coherent oscillation of a single nuclear spin and realization of a two-qubit conditional quantum gate
• Quantum error correction in a solid-state hybrid spin register
• Unconditional quantum teleportation between distant solid-state qubits
• A 10-qubit solid-state spin register with quantum memory up to one minute
• Universal control and error correction in multi-qubit spin registers in diamond
• Decoherence-protected quantum gates for a hybrid solid-state spin register
• Isolating and enhancing the emission of single erbium ions using a silicon nanophotonic cavity
• Detection and control of individual nuclear spins using a weakly coupled electron spin
• Sensing remote nuclear spins
• Repeated quantum error correction on a continuously encoded qubit by real-time feedback
• Coherent control and single-shot readout of a rare-earth ion embedded in a nanophotonic cavity
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• Optical quantum nondemolition measurement of a solid-state spin without a cycling transition
• Sensing distant nuclear spins with a single electron spin
• Coherent properties of single rare-earth spin qubits
• Optical addressing of an individual erbium ion in silicon
• Optically addressing single rare-earth ions in a nanophotonic cavity
• Parallel single-shot measurement and coherent control of solid-state spins below the diffraction limit
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• Entanglement of dark electron-nuclear spin defects in diamond
• Spectral multiplexing of telecom emitters with stable transition frequency
• Sensing individual nuclear spins with a single rare-earth electron spin
• Hybrid microwave-optical scanning probe for addressing solid-state spins in nanophotonic cavities

Cited by in corpus (20)

• Indistinguishable telecom band photons from a single erbium ion in the solid state
• Quantum networks with neutral atom processing nodes
• Frequency tunable, cavity-enhanced single erbium quantum emitter in the telecom band
• Detection of single ions in a nanoparticle coupled to a fiber cavity
• A perspective on the pathway to a scalable quantum internet using rare-earth ions
• Stark tuning of telecom single-photon emitters based on a single Er${}^{3+}$
• Spectral Multiplexing of Rare-earth Emitters in a Co-doped Crystalline Membrane
• Quantum networks using rare-earth ions
• Control of solid-state nuclear spin qubits using an electron spin-1/2
• Optimal remote restoring of quantum states in communication lines via local magnetic field
• Improved Electron-Nuclear Quantum Gates for Spin Sensing and Control
• Isolation of individual Er quantum emitters in anatase TiO${}_2$ on Si photonics
• Hilbert Space Fragmentation and Subspace Scar Time-Crystallinity in Driven Homogeneous Central-Spin Models
• Bath Dynamical Decoupling with a Quantum Channel
• Erbium Quantum Memory Platform with Long Optical Coherence via Back-End of Line Deposition on Foundry-Fabricated Photonics
• Nanocavity-mediated Purcell enhancement of Er in TiO${}_2$ thin films grown via atomic layer deposition
• Efficient Quantum Repeater with Single Atoms in Cavities
• Slowly generated anomalously large nuclear field in bulk n-AlGaAs
• Coherence restoring in communication line via controlled interaction with environment
• Long-lived quantum memories with rare-earth ions doped in crystals