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Modeling the metastable dynamics of correlated structures.
Alexey M Shakirov1, Sergey V Tsibulsky2, Andrey E Antipov3
11] Department of Physics, Lomonosov Moscow State University, 119992 Moscow, Russia [2] Russian Quantum Center, 143025 Skolkovo, Moscow region, Russia.
Scientific Reports
|January 28, 2015
Summary
This study investigates quantum dynamics in asymmetric triangular clusters. Researchers found that tuning the excitation spectrum controls decay rates and reveals metastable states.
Area of Science:
- Quantum physics
- Condensed matter physics
- Chemical physics
Background:
- Investigating quantum dynamics in molecular clusters is crucial for understanding energy transfer and state stability.
- Coupling to a reservoir introduces complex dynamics, including thermal activation processes.
Purpose of the Study:
- To investigate the metastable quantum dynamics of an asymmetric triangular cluster coupled to a reservoir.
- To understand how bath-mediated transitions and thermal activation influence system dynamics.
- To explore the control of decay rates by manipulating the cluster's excitation spectrum.
Main Methods:
- Utilizing the master equation approach to model the quantum system.
- Constructing transition operators based on many-body states.
- Analyzing the time evolution of system observables.
Main Results:
- Revealed the metastability of an excited state within the cluster.
- Identified a magnetically polarized ground state that is also metastable.
- Demonstrated that decay rates can be controlled by tuning the excitation spectrum.
Conclusions:
- The asymmetric triangular cluster exhibits complex quantum dynamics influenced by its environment.
- Metastable states, including a magnetically polarized ground state, are a key feature of this system.
- The excitation spectrum offers a pathway to control the decay dynamics of such quantum systems.
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