Protecting quantum spin coherence of nanodiamonds in living cells

Abstract

Due to its superior coherent and optical properties at room temperature, the nitrogen-vacancy (N-V ) center in diamond has become a promising quantum probe for nanoscale quantum sensing. However, the application of N-V containing nanodiamonds to quantum sensing suffers from their relatively poor spin coherence times. Here we demonstrate energy efficient protection of N-V spin coherence in nanodiamonds using concatenated continuous dynamical decoupling, which exhibits excellent performance with less stringent microwave power requirement. When applied to nanodiamonds in living cells we are able to extend the spin coherence time by an order of magnitude to the $T_1$-limit of up to $30\mu$s. Further analysis demonstrates concomitant improvements of sensing performance which shows that our results provide an important step towards in vivo quantum sensing using N-V centers in nanodiamond.

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• Quantum sensing
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Cited by in corpus (19)

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• Is a quantum biosensing revolution approaching?
• Coherence protection and decay mechanism in qubit ensembles under concatenated continuous driving
• Quantum optimal control using phase-modulated driving fields
• In situ electron paramagnetic resonance spectroscopy using single nanodiamond sensors
• Long Spin Coherence and Relaxation Times in Nanodiamonds Milled from Polycrystalline ${}^{12}$C Diamond
• Observation of high-order Mollow triplet by quantum mode control with concatenated continuous driving
• Protecting Quantum Information via Destructive Interference of Correlated Noise
• High Frequency Magnetometry with an Ensemble of Spin Qubits in Hexagonal Boron Nitride
• Precise Spectroscopy of High-Frequency Oscillating Fields with a Single-Qubit Sensor
• Accelerated quantum control in a three-level system by jumping along the geodesics
• Optimized continuous dynamical decoupling via differential geometry and machine learning
• Two-photon-transition superadiabatic passage in an nitrogen-vacancy center in diamond
• Designing arbitrary single-axis rotations robust against perpendicular time-dependent noise
• Temperature selective thermometry with sub-microsecond time resolution using dressed-spin states in diamond
• Bayesian-based hybrid method for rapid optimization of NV center sensors
• Concatenated continuous driving of silicon qubit by amplitude and phase modulation
• Observation of symmetry-protected selection rules in periodically driven quantum systems