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Dissipative geometric phase and decoherence in parity-violating chiral molecules
A Dorta-Urra1, H C Peñate-Rodríguez, P Bargueño
1Unidad asociada UAM-CSIC, Instituto de Física Fundamental (CSIC), Serrano 123, E-28006 Madrid, Spain.
The Journal of Chemical Physics
|May 16, 2012
Summary
This study analyzes the geometric phase in open quantum systems, focusing on chiral molecules. Dissipative effects and system-bath coupling significantly influence geometric phase behavior and decoherence in quantum interference patterns.
Area of Science:
- Quantum mechanics
- Chemical physics
- Condensed matter theory
Background:
- Open quantum systems exhibit complex dynamics influenced by environmental interactions.
- Geometric phase in quantum mechanics provides insights into cyclic evolution.
- Chiral molecules present unique quantum phenomena due to tunneling and parity violation.
Purpose of the Study:
- To analyze the cyclic evolution of a two-level system within a generalized Langevin framework.
- To extend the concept of geometric phase to dissipative systems with Ohmic friction.
- To investigate the interplay between tunneling, parity violation, and dissipative effects in chiral molecules.
Main Methods:
- Utilizing a generalized Langevin framework for open quantum systems.
- Applying the framework to analyze the geometric phase in dissipative environments.
- Investigating the dynamics of chiral molecules with competing quantum effects.
Main Results:
- The geometric phase in dissipative systems is shown to be dependent on system-bath coupling functions.
- Dissipated energy plays a crucial role in determining the behavior of the geometric phase.
- System-bath coupling influences decoherence and the resulting quantum interference patterns.
Conclusions:
- The study provides a theoretical framework for understanding geometric phase in dissipative chiral molecular systems.
- Dissipative effects and system-bath interactions are critical factors in controlling quantum phenomena.
- This research offers insights into the quantum dynamics of chiral molecules relevant to quantum information and sensing.
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