Transition between continuous and discrete spectra in dynamical-decoupling noise spectroscopy
arXiv:1904.02001 · doi:10.1103/PhysRevA.100.052115
Abstract
Here, we explore the prospects of carrying out the single qubit spectroscopy of environmental noise when the resolution of the frequency filters produced by the dynamical decoupling pulse sequences can be set high enough to reveal the discrete structure of the noise spectral density. The standard form of spectroscopy is applicable when the filter is unable to resolve the discrete spectral lines and only coarse grained approximation of the spectrum is recorded in the qubit's decoherence rate. When the discrete structure becomes accessible, the qubit probe evolves in a qualitatively different manner, and the procedure for recovering spectral density has to be redesigned.
arXiv comment10 pages, 4 figures, 3 appendices
References in corpus (28)
- Quantum sensing
- Dynamical Decoupling of Open Quantum Systems
- Dynamical suppression of decoherence in two-state quantum systems
- Dynamical decoupling and noise spectroscopy with a superconducting flux qubit
- Storing quantum information for 30 seconds in a nanoelectronic device
- Optimized Dynamical Decoupling in a Model Quantum Memory
- Electrometry Using Coherent Exchange Oscillations in a Singlet-Triplet-Qubit
- Detection and control of individual nuclear spins using a weakly coupled electron spin
- Dynamical decoupling noise spectroscopy
- Sensing remote nuclear spins
- Spectroscopy of Surface-Induced Noise Using Shallow Spins in Diamond
- Single Ion Quantum Lock-In Amplifier
- Sensing distant nuclear spins with a single electron spin
- Scaling of Dynamical Decoupling for Spin Qubits
- Pure quantum dephasing of a solid state electron spin qubit in a large nuclear spin bath coupled by long-range hyperfine-mediated interactions
- Environmental noise spectroscopy with qubits subjected to dynamical decoupling
- Optimal pulse spacing for dynamical decoupling in the presence of a purely-dephasing spin-bath
- Notch filtering the nuclear environment of a spin qubit
- Direct Measurement of the System-Environment Coupling as a Tool For Understanding Decoherence and Dynamical Decoupling
- Anomalous decoherence effect in a quantum bath
- Spectrum of the Nuclear Environment for GaAs Spin Qubits
- Optimized Dynamical Decoupling for Power Law Noise Spectra
- Single-Spin Spectrum-Analyzer for a Strongly Coupled Environment
- Noise spectroscopy of a quantum-classical environment with a diamond qubit
- The dynamical-decoupling-based spatiotemporal noise spectroscopy
- Accuracy of dynamical-decoupling-based spectroscopy of Gaussian noise
- Spectroscopy of classical environmental noise with a qubit subjected to projective measurements
- Localization of a magnetic moment using a two-qubit probe