Universal coherence protection in a solid-state spin qubit

Abstract

Decoherence largely limits the physical realization of qubits and its mitigation is critical to quantum science. Here, we construct a robust qubit embedded in a decoherence-protected subspace, obtained by hybridizing an applied microwave drive with the ground-state electron spin of a silicon carbide divacancy defect. The qubit is protected from magnetic, electric, and temperature fluctuations, which account for nearly all relevant decoherence channels in the solid state. This culminates in an increase of the qubit's inhomogeneous dephasing time by over four orders of magnitude (to > 22 milliseconds), while its Hahn-echo coherence time approaches 64 milliseconds. Requiring few key platform-independent components, this result suggests that substantial coherence improvements can be achieved in a wide selection of quantum architectures.

12 pages, 4 figures

References in corpus (29)

• High-fidelity projective readout of a solid-state spin quantum register
• Strong Coupling of a Spin Ensemble to a Superconducting Resonator
• Isolated electron spins in silicon carbide with millisecond-coherence times
• Polytype control of spin qubits in silicon carbide
• Optically addressable molecular spins for quantum information processing
• Coherence of Nitrogen-Vacancy Electronic Spin Ensembles in Diamond
• One-second coherence for a single electron spin coupled to a multi-qubit nuclear-spin environment
• Atomic clock transitions in silicon-based spin qubits
• Electrical and optical control of single spins integrated in scalable semiconductor devices
• Probing spin-phonon interactions in silicon carbide with Gaussian acoustics
• Quantum decoherence dynamics of divacancy spins in silicon carbide
• Electrically and mechanically tunable electron spins in silicon carbide color centers
• Entanglement and control of single quantum memories in isotopically engineered silicon carbide
• The temperature shifts of the resonances of the NV- center in diamond
• Strong mechanical driving of a single electron spin
• Isolated spin qubits in SiC with a high-fidelity infrared spin-to-photon interface
• Pulsed polarisation for robust DNP
• Ultralong Dephasing Times in Solid-State Spin Ensembles via Quantum Control
• Universal coherence protection in a solid-state spin qubit
• Coherence-protected Quantum Gate by Continuous Dynamical Decoupling in Diamond
• Competition between electric field and magnetic field noise in the decoherence of a single spin in diamond
• A Dressed Spin Qubit in Silicon
• Electrically driven spin resonance in silicon carbide color centers
• Electrically driven optical interferometry with spins in silicon carbide
• Coherent Manipulation with Resonant Excitation and Single Emitter Creation of Nitrogen Vacancy Centers in 4H Silicon Carbide
• Continuous dynamical decoupling of a single diamond nitrogen-vacancy center spin with a mechanical resonator
• Self-protected nanoscale thermometry based on spin defects in silicon carbide
• Hybrid continuous dynamical decoupling: a photon-phonon doubly dressed spin
• Zero field optical magnetic resonance study of phosphorus donors in 28-silicon

Cited by in corpus (39)

• Integrated quantum photonics with silicon carbide: challenges and prospects
• Entanglement and control of single quantum memories in isotopically engineered silicon carbide
• Universal coherence protection in a solid-state spin qubit
• Room temperature coherent manipulation of single-spin qubits in silicon carbide with a high readout contrast
• Antisite defect qubits in monolayer transition metal dichalcogenides
• Erasure qubits: Overcoming the $T_1$ limit in superconducting circuits
• Room temperature coherent control of protected qubit in hexagonal boron nitride
• Probing the coherence of solid-state qubits at avoided crossings
• Demonstrating a long-coherence dual-rail erasure qubit using tunable transmons
• Coherence and entanglement of inherently long-lived spin pairs in diamond
• Quantum Computation Protocol for Dressed Spins in a Global Field
• Implementation of the SMART protocol for global qubit control in silicon
• Simple master equations for describing driven systems subject to classical non-Markovian noise
• Hybrid Integration of GaP Photonic Crystal Cavities with Silicon-Vacancy Centers in Diamond by Stamp-Transfer
• Exhaustive characterization of modified Si vacancies in 4H-SiC
• Protecting Quantum Information via Destructive Interference of Correlated Noise
• Nuclear Spin Quantum Memory in Silicon Carbide
• Bichromatic Rabi Control of Semiconductor Qubits
• Spin coherence times of point defects in two-dimensional materials from first principles
• Surface roughness noise analysis and comprehensive noise effects on depth-dependent coherence time of NV centers in diamond
• High Fidelity Control of a Nitrogen-Vacancy Spin Qubit at Room Temperature using the SMART Protocol
• Clock Transitions Guard Against Spin Decoherence in Singlet Fission
• Experimental protection of quantum coherence by using a phase-tunable image drive
• Coherent manipulation of nuclear spins in the strong driving regime
• Temperature dependence of the AB-lines and Optical Properties of the Carbon-Antisite Vacancy Pair in 4H-SiC
• Nuclear Spin Engineering for Quantum Information Science
• Qubit-environment entanglement outside of pure decoherence: hyperfine interaction
• Robust gates with spin-locked superconducting qubits
• Computational Electromagnetics Meets Spin Qubits: Controlling Noise Effects in Quantum Sensing and Computing
• Experimental Extraction of Coherent Ergotropy and Its Energetic Cost in a Superconducting Qubit
• Adiabaticity of spin dynamics in diamond nitrogen vacancy centers in time-dependent magnetic fields
• Designer polyradical nanographenes with strong spin entanglement and perturbation resilience via Clar's goblet extension
• Sustaining Rabi oscillations by using a phase-tunable image drive
• Dressed-State Spectroscopy and Magic Trapping of Microwave-Shielded NaCs Molecules
• A signature of quantumness in pure decoherence control
• Three-photon electron spin resonances
• Concatenated continuous driving of silicon qubit by amplitude and phase modulation
• Protection of noisy multipartite entangled states of superconducting qubits via universally robust dynamical decoupling schemes
• Robust applicability of continuous dynamical decoupling to decoherence reduction in longitudinal and transverse-noise settings: The role of anisotropy