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Stochastic quantum Zeno-based detection of noise correlations
Matthias M Müller1, Stefano Gherardini1,2,3, Filippo Caruso1
1Department of Physics and Astronomy, LENS, QSTAR, University of Florence, via G. Sansone 1, I-50019 Sesto Fiorentino, Italy.
Scientific Reports
|December 13, 2016
Summary
Stochastic Quantum Zeno Dynamics (SQZD) reveals how environmental time correlations affect quantum system survival probabilities. Detecting these correlations using quantum probes can advance quantum sensing technologies.
Area of Science:
- Quantum Physics
- Quantum Dynamics
- Environmental Sensing
Background:
- Constant observation of quantum systems can restrict their dynamics to a measurement subspace.
- Stochastic Quantum Zeno Dynamics (SQZD) describes survival probability in such scenarios when driven by random classical fields.
Purpose of the Study:
- Investigate the time and ensemble averages of survival probability under SQZD.
- Determine the influence of environmental time correlations on the coincidence of these averages.
- Propose a method for detecting environmental time correlations using quantum probes.
Main Methods:
- Analysis of Stochastic Quantum Zeno Dynamics (SQZD).
- Studying the time and ensemble averages of survival probability.
- Coupling a quantum probe system to a noisy environment.
Main Results:
- Environmental time correlations dictate whether time and ensemble averages of survival probability coincide.
- These correlations can induce non-Markovian dynamics in quantum systems.
- Survival probability measurements of a quantum probe can reveal environmental time correlations.
Conclusions:
- Environmental time correlations are crucial in quantum system dynamics under continuous observation.
- A quantum probe method offers a way to detect these correlations.
- This research paves the way for advanced quantum sensing technologies.
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