Spin Amplification for Magnetic Sensors Employing Crystal Defects

Abstract

Recently there have been several theoretical and experimental studies of the prospects for magnetic field sensors based on crystal defects, especially nitrogen vacancy (NV) centres in diamond. Such systems could potentially be incorporated into an AFM-like apparatus in order to map the magnetic properties of a surface at the single spin level. In this Letter we propose an augmented sensor consisting of an NV centre for readout and an `amplifier' spin system that directly senses the local magnetic field. Our calculations show that this hybrid structure has the potential to detect magnetic moments with a sensitivity and spatial resolution far beyond that of a simple NV centre, and indeed this may be the physical limit for sensors of this class.

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Cited by in corpus (37)

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• Detecting External Electron Spins Using Nitrogen-Vacancy Centers
• Atomic-scale nuclear spin imaging using quantum-assisted sensors in diamond
• Diamond based single molecule magnetic resonance spectroscopy
• Quantum sensors based on weak-value amplification cannot overcome decoherence
• Room-temperature optically detected coherent control of molecular spins
• Nonperturbative Leakage Elimination Operators and Control of a Three-Level System
• High-Field Magnetometry with Hyperpolarized Nuclear Spins
• Evolution-free Hamiltonian parameter estimation through Zeeman markers
• Vector magnetic field sensing via multi-frequency control of nitrogen-vacancy centers in diamond
• Optically Detected Cross-Relaxation Spectroscopy of Electron Spins in Diamond
• Demonstration of vector magnetic field sensing by simultaneous control of nitrogen-vacancy centers in diamond using multi-frequency microwave pulses
• Dissipative superradiant spin amplifier for enhanced quantum sensing
• High-efficiency resonant amplification of weak magnetic fields for single spin magnetometry
• Three-level spin system under decoherence-minimizing driving fields: Application to nitrogen-vacancy spin dynamics
• Sensitive imaging of electromagnetic fields with paramagnetic polar molecules
• Quantum correlation enhanced weak field detection in optomechanical system
• Hybrid quantum magnetic field sensor with an electron spin and a nuclear spin in diamond
• Environment Assisted Metrology with Spin Qubit
• Environment-assisted quantum-enhanced sensing with electronic spins in diamond
• ${}^{29}$Si nuclear spins as a resource for donor spin qubits in silicon
• Adaptive Circuit Learning for Quantum Metrology
• Two-electron-spin ratchets as a platform for microwave-free dynamic nuclear polarization of arbitrary material targets
• Efficient detection of inhomogeneous magnetic fields from a single spin with Dicke states
• Dynamic mean-field theory for dense spin systems at infinite temperature
• Variational secure cloud quantum computing
• Vector DC magnetic-field sensing with reference microwave field using perfectly aligned nitrogen-vacancy centers in diamond
• Control of an environmental spin defect beyond the coherence limit of a central spin
• Single Spin Detection with Entangled States
• Enhancing polarization transfer from nitrogen-vacancy centers in diamond to external nuclear spins via dangling bond mediators
• Quantum entanglement distribution using a magnetic field sensor
• Engineering diamond interfaces free of dark spins
• Room-temperature hybrid 2D-3D quantum spin system for enhanced magnetic sensing and many-body dynamics
• Creation of Depth-Confined, Shallow Nitrogen-Vacancy Centers in Diamond With Tunable Density