Experimental protection of 2-qubit quantum gates against environmental noise by dynamical decoupling

Abstract

Hybrid systems consisting of different types of qubits are promising for building quantum computers if they combine useful properties of their constituent qubits. However, they also pose additional challenges if one type of qubits is more susceptible to environmental noise than the others. Dynamical decoupling can help to protect such systems by reducing the decoherence due to the environmental noise, but the protection must be designed such that it does not interfere with the control fields driving the logical operations. Here, we test such a protection scheme on a quantum register consisting of the electronic and nuclear spins of a nitrogen-vacancy center in diamond. The results show that processing is compatible with protection: The dephasing time was extended almost to the limit given by the longitudinal relaxation time of the electron spin.

References in corpus (16)

• Universal dynamical decoupling of a single solid-state spin from a spin bath
• Optimized Dynamical Decoupling in a Model Quantum Memory
• Strong Coupling of a Spin Ensemble to a Superconducting Resonator
• Decoherence-protected quantum gates for a hybrid solid-state spin register
• Experimental Realization of Universal Geometric Quantum Gates with Solid-State Spins
• Extending Quantum Coherence in Diamond
• Robust dynamical decoupling for quantum computing and quantum memory
• High fidelity quantum gates via dynamical decoupling
• Quantum process tomography and Linblad estimation of a solid state qubit
• Universal Control of Nuclear Spins Via Anisotropic Hyperfine Interactions
• Magnetic strong coupling in a spin-photon system and transition to classical regime
• Room-temperature high-speed nuclear-spin quantum memory in diamond
• Rigorous Bounds on the Performance of a Hybrid Dynamical Decoupling-Quantum Computing Scheme
• Experimental protection of quantum gates against decoherence and control errors
• Robust Dynamical Decoupling for Arbitrary Quantum States of a Single NV Center in Diamond
• Optically detected nuclear quadrupolar interaction of 14N in nitrogen-vacancy centers in diamond

Cited by in corpus (24)

• Quantum Image Processing and Its Application to Edge Detection: Theory and Experiment
• Efficient Implementation of a Quantum Algorithm in a Single Nitrogen Vacancy Center of Diamond
• Error-rejecting quantum computing with solid-state spins assisted by low-Q optical microcavities
• Efficient quantum gates for individual nuclear spin qubits by indirect control
• Polarizing the electronic and nuclear spin of the NV-center in diamond in arbitrary magnetic fields: analysis of the optical pumping process
• Decoherence scaling transition in the dynamics of quantum information scrambling
• Suppressing Coherent Two-Qubit Errors via Dynamical Decoupling
• Reviving the precision of multiple entangled probes in an open system by simple $\pi$-pulse sequences
• Improved indirect control of nuclear spins in diamond NV centers
• Dark State Polarizing a Nuclear Spin in the Vicinity of a Nitrogen-Vacancy Center
• Fast Quantum State Tomography in the Nitrogen Vacancy Center of Diamond
• Topological Dynamical Decoupling
• Performance of quantum registers in diamond in the presence of spin impurities
• Coherent Control of a Long-Lived Nuclear Memory Spin in a Germanium-Vacancy Multi-Qubit Node
• Path integral framework for characterizing and controlling decoherence induced by non-stationary environments on a quantum probe
• Pulse sequences for controlled 2- and 3-qubit gates in a hybrid quantum register
• Bloch-Siegert Shift in a Hybrid Quantum Register: Quantification and Compensation
• Level anti-crossings of an NV center in diamond: Decoherence-free subspaces and 3D sensors of microwave magnetic fields
• Protection of Logical Qubits via Optimal State Transfers
• Optimal photon energies for initialization of hybrid spin quantum registers of NV centers in diamond
• Room-temperature Composite-pulses for Robust Diamond Magnetometry
• Higher-order protection of quantum gates: Hamiltonian engineering coordinated with dynamical decoupling
• Robust Dynamical Decoupling for the Manipulation of a Spin Network via a Single Spin
• Experimental implementation of universal holonomic quantum computation on solid-state spins with optimal control