Quantum spectroscopy of single spins assisted by a classical clock
arXiv:1612.07225 · doi:10.1103/PhysRevA.98.013844
Abstract
Quantum spectroscopy with single two level systems has considerably improved our ability to detect weak signals. Recently it was realized that for classical signals, precision and resolution of quantum spectroscopy is limited mainly by coherence of the signal and stability of the clock used to measure time. The coherence time of the quantum probe, which can be significantly shorter, is not a major limiting factor in resolution measurements. Here, we address a similar question for spectroscopy of quantum signals, for example a quantum sensor is used to detect a single nuclear spin. We present and analyze a novel correlation spectroscopy technique with performance that is limited by the coherence time of the target spins and the stability of the clock.
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- Characterization of arbitrary-order correlations in quantum baths by weak measurement
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- Quantum nonlinear spectroscopy of single nuclear spins
- Optimal protocols for quantum metrology with noisy measurements
- Precise Spectroscopy of High-Frequency Oscillating Fields with a Single-Qubit Sensor
- Limits on Spectral Resolution Measurements by Quantum Probes
- Quantum control and sensing of nuclear spins by electron spins under power limitations
- Relationship between subjecting the qubit to dynamical decoupling and to a sequence of projective measurements
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- On the robustness of the NV-NMR spectrometer setup to magnetic field inhomogeneities
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- Extending the dynamic range in quantum frequency estimation with sequential weak measurements