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Updated: Jun 3, 2026
06:42
Generation and Coherent Control of Pulsed Quantum Frequency Combs
Published on: June 8, 2018
Attaining persistent field-free control of open and closed quantum systems
Erik Anson1, Vincent Beltrani, Herschel Rabitz
1Department of Physics, Princeton University, Princeton, New Jersey 08544-1009, USA.
The Journal of Chemical Physics
|April 5, 2011
Summary
Persistent quantum control (PQC) enables maintaining quantum system properties over time. This study confirms PQC feasibility for various systems and observables, with results depending on duration, temperature, and system specifics.
Area of Science:
- Quantum mechanics
- Quantum control theory
Background:
- Persistent quantum control (PQC) seeks to preserve a specific observable's value after an applied field ceases.
- Understanding PQC feasibility is crucial for developing advanced quantum technologies.
Purpose of the Study:
- To assess the feasibility of achieving PQC for arbitrary finite-level quantum systems and observables.
- To optimize PQC behavior across accessible states for both open and closed systems.
- To identify factors influencing the quality of observable persistence.
Main Methods:
- Analysis of PQC feasibility independent of state preparation methods.
- Optimization of PQC over physically accessible prepared states.
- Investigation of PQC behavior in open and closed quantum systems.
- Case study using the alignment of a rigid diatomic rotor.
Main Results:
- PQC feasibility was evaluated for diverse quantum systems and observables.
- Observable persistence quality depends on persistence duration, system temperature, observable operator, and energy levels.
- Theoretical estimates for PQC behavior are promising.
Conclusions:
- Achieving PQC is feasible for a range of quantum systems and observables.
- System parameters significantly influence the effectiveness and duration of PQC.
- Current laboratory technology can support the experimental exploration of PQC.
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