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Tuning quantum measurements to control chaos.
Jessica K Eastman1, Joseph J Hope2, André R R Carvalho1
1Centre for Quantum Computation and Communication Technology, Department of Quantum Science, Research School of Physics and Engineering, The Australian National University, Canberra ACT 2601 Australia.
Scientific Reports
|March 21, 2017
Summary
Researchers found that how a quantum system is monitored can control chaos. The choice of measurement strategy influences the system
Area of Science:
- Quantum mechanics
- Quantum chaos
- Quantum information
Background:
- Environment-induced decoherence is critical for understanding chaos in quantum systems.
- The system-environment interaction dictates the quantum-to-classical transition in chaotic systems.
Purpose of the Study:
- To investigate the impact of varying monitoring strategies on quantum chaos.
- To explore how measurement schemes influence the emergence or suppression of chaos in quantum systems.
Main Methods:
- Focused on a specific decoherence model with fixed environmental coupling.
- Analyzed the effect of different monitoring strategies on system behavior.
Main Results:
- Demonstrated a control mechanism for chaos via monitoring parameter selection.
- Identified a regime between deep quantum and classical limits where chaos can be controlled.
- Showcased the interplay between quantum interference and decoherence effectiveness in different measurement schemes.
Conclusions:
- The choice of monitoring strategy significantly impacts the chaotic behavior of quantum systems.
- Quantum interference and decoherence effectiveness are key factors in controlling chaos through measurement.
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