Magnetic fields Archives - IEEE Transactions on Quantum Engineering

Wavelet-Based Quantum Sensing of Geomagnetic Fluctuations With Multiple NV Ensembles

January 15, 2025Chou-Wei Kiang, Jean-Fu KiangQuantum Sensing & MetrologyFluctuations, Magnetic fields, Magnetometers, Masers, Quantum sensing, Satellites, Sensitivity, Sensors, Superconducting magnets, Temperature sensors

Nitrogen-vacancy (NV) ensembles are viable magnetometers to be implemented on nanosatellites for monitoring geomagnetic fluctuations, which are credible precursors for predicting earthquakes at short notice. In this work, a Haar wavelet-based quantum sensing method is proposed to reconstruct the time-varying waveform of geomagnetic fluctuations in the very low frequency band. To collect different frequency components […]

Optimizing the Electrical Interface for Large-Scale Color-Center Quantum Processors

June 19, 2024Luc Enthoven, Masoud Babaie, Fabio Sebastiano,Enabling TechnologiesColor, Diamonds, Electrons, Magnetic fields, Program processors, Quantum computing, Qubit

Quantum processors based on color centers in diamond are promising candidates for future large-scale quantum computers thanks to their flexible optical interface, (relatively) high operating temperature, and high-fidelity operation. Similar to other quantum computing platforms, the electrical interface required to control and read out such qubits may limit both the performance of the whole system […]

Optimizing the Electrical Interface for Large-Scale Color-Center Quantum Processors

June 19, 2024Luc Enthoven; Masoud Babaie; Fabio SebastianoQuantum Computer Architecture, UncategorizedColor, Diamonds, Electrons, Magnetic fields, Program processors, Quantum computing, Qubit

Optimal Control of the Operating Regime of a Single-Electron Double Quantum Dot

October 16, 2023V. ReiherQuantum ComputingLogic gates, Magnetic fields, Optimal control, Pipelines, Quantum dots, Qubit, Silicon

The double-quantum-dot device benefits from the advantages of both the spin and charge qubits, while offering ways to mitigate their drawbacks. Careful gate voltage modulation can grant greater spinlike or chargelike dynamics to the device, yielding long coherence times with the former and high electrical susceptibility with the latter for electrically driven spin rotations or […]