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Updated: Dec 27, 2025
07:56
A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference
Published on: September 5, 2019
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Photon waiting-time distributions: A keyhole into dissipative quantum chaos
I I Yusipov1, O S Vershinina1, S V Denisov2
1Department of Applied Mathematics, Lobachevsky University, 603950 Nizhny Novgorod, Russia.
Chaos (Woodbury, N.Y.)
|March 2, 2020
Summary
Researchers identified chaotic and regular regimes in open quantum systems using quantum Lyapunov exponents. Chaotic states show distinct photon waiting time distributions, detectable without disturbing the system.
Area of Science:
- Quantum optics
- Nonlinear dynamics
- Complex quantum systems
Background:
- Classifying and quantifying complex states in open quantum systems remains challenging.
- The Kerr-nonlinear cavity with time-modulated coherent pumping presents a complex quantum system example.
Purpose of the Study:
- To identify and differentiate between chaotic and regular regimes in a periodically driven Kerr-nonlinear cavity.
- To develop a method for discriminating quantum states without perturbing system dynamics.
Main Methods:
- Unraveling the Markovian master equation into quantum trajectories.
- Calculating quantum Lyapunov exponents to characterize system dynamics.
- Analyzing the distribution of photon waiting times.
Main Results:
- Distinct chaotic and regular regimes were identified in the nonlinear cavity.
- Chaotic regimes exhibit intermediate power-law asymptotics in photon waiting time distributions.
- Photon waiting time distributions allow discrimination between chaotic and regular states.
Conclusions:
- Quantum Lyapunov exponents effectively identify chaotic dynamics in open quantum systems.
- Monitoring photon emission provides a non-invasive method to distinguish quantum states.
- This approach aids in understanding and controlling complex quantum phenomena.
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