Polarization and readout of coupled single spins in diamond

Abstract

We study the coupling of a single nitrogen-vacancy center in diamond to a nearby single nitrogen defect at room temperature. The magnetic dipolar coupling leads to a splitting in the electron spin resonance frequency of the nitrogen-vacancy center, allowing readout of the state of a single nitrogen electron spin. At magnetic fields where the spin splitting of the two centers is the same we observe a strong polarization of the nitrogen electron spin. The amount of polarization can be controlled by the optical excitation power. We combine the polarization and the readout in time-resolved pump-probe measurements to determine the spin relaxation time of a single nitrogen electron spin. Finally, we discuss indications for hyperfine-induced polarization of the nitrogen nuclear spin.

Cited by in corpus (24)

• High-sensitivity diamond magnetometer with nanoscale resolution
• Ab initio supercell calculations on nitrogen-vacancy center in diamond: its electronic structure and hyperfine tensors
• Coherent Population Trapping of Single Spins in Diamond Under Optical Excitation
• Quenching Spin Decoherence in Diamond through Spin Bath Polarization
• Excited-state spectroscopy of single NV defects in diamond using optically detected magnetic resonance
• Excited-state spectroscopy using single-spin manipulation in diamond
• Room-temperature manipulation and decoherence of a single spin in diamond
• Spin dynamics in InAs-nanowire quantum-dots coupled to a transmission line
• Polarization-selective excitation of N-V centers in diamond
• Creating diamond color centers for quantum optical applications
• Universal Control of Nuclear Spins Via Anisotropic Hyperfine Interactions
• Prospects for measurement-based quantum computing with solid state spins
• Time-averaging within the excited state of the nitrogen-vacancy centre in diamond
• Exponential decay in a spin bath
• Coherence of an optically illuminated single nuclear spin qubit
• Long-time electron spin storage via dynamical suppression of hyperfine-induced decoherence in a quantum dot
• Deterministically entangling distant nitrogen-vacancy centers by a nanomechanical cantilever
• Single-atom doping for quantum device development in diamond and silicon
• Coherent manipulation of electron spins up to ambient temperatures in Cr${}^{5+}$(S=1/2) doped K${}_3$NbO${}_8$
• A Charge and Spin Readout Scheme For Single Self-Assembled Quantum Dots
• Quantum information processing using frequency control of impurity spins in diamond
• Single photon quantum non-demolition in the presence of inhomogeneous broadening
• Design of an ultrahigh Quality factor silicon nitride photonic crystal nanocavity for coupling to diamond nanocrystals
• Entanglement of Remote Spins with Unequal Coupling to an Optically Active Mediator