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Updated: May 23, 2026
06:42
Generation and Coherent Control of Pulsed Quantum Frequency Combs
Published on: June 8, 2018
Communication: Quantum Zeno-based control mechanism for molecular fragmentation.
C Sanz-Sanz1, A S Sanz, T González-Lezana
1Instituto de Física Fundamental-CSIC, Serrano 123, 28006 Madrid, Spain.
The Journal of Chemical Physics
|April 3, 2012
Summary
Quantum Zeno effect controls molecular fragmentation. Rapid vibrational dissociation slows, enhancing slow electronic double fragmentation by orders of magnitude in Ne-Br2 complexes.
Area of Science:
- Quantum control
- Molecular dynamics
- Chemical physics
Background:
- Molecular fragmentation involves competing vibrational and electronic predissociation channels.
- The van der Waals Ne-Br2 complex exhibits these competing dissociation pathways.
- Quantum Zeno effect offers a mechanism for controlling quantum processes.
Purpose of the Study:
- To propose and investigate a quantum control mechanism for molecular fragmentation.
- To explore the application of the quantum Zeno effect to control dissociation in Ne-Br2.
- To theoretically predict the outcome of quantum control on competing fragmentation channels.
Main Methods:
- Realistic three-dimensional wave packet simulations.
- Utilizing ab initio interaction potentials for Ne-Br2.
- Implementing two numerical models to simulate quantum Zeno effect measurements.
Main Results:
- The quantum Zeno effect significantly slows down fast vibrational predissociation.
- Slow electronic (double fragmentation) predissociation is enhanced by several orders of magnitude.
- Control over competing dissociation channels in Ne-Br2 was theoretically demonstrated.
Conclusions:
- Quantum control via the quantum Zeno effect can selectively enhance specific molecular fragmentation pathways.
- Theoretical predictions provide a basis for experimental validation.
- This mechanism offers a novel approach to manipulating molecular dissociation.
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