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Published on: August 2, 2019
Roughening Dynamics of Interfaces in the Two-Dimensional Quantum Ising Model
Wladislaw Krinitsin1,2, Niklas Tausendpfund1,3, Matteo Rizzi1,3
1Forschungszentrum Jülich, Institute of Quantum Control (PGI-8), D-52425 Jülich, Germany.
We simulated quantum interface dynamics in the 2D quantum Ising model. Smooth interfaces show long-lived states, while rough interfaces decay rapidly, offering experimental insights for Rydberg systems.
Area of Science:
- Condensed matter physics
- Quantum dynamics
- Interface phenomena
Background:
- Understanding matter properties relies on interface physics.
- Quantum interface dynamics present significant research challenges.
- The 2D quantum Ising model is a key system for studying magnetism and phase transitions.
Purpose of the Study:
- To identify the dynamical signature of an interface roughening transition.
- To investigate the behavior of interfaces in the ferromagnetic phase of the 2D quantum Ising model.
- To explore the potential for experimental verification in Rydberg atomic systems.
Main Methods:
- Utilized large-scale tree tensor network simulations.
- Analyzed dynamics for initial domain wall profiles.
- Investigated the impact of interface smoothness on dynamics.
Main Results:
- Identified a distinct dynamical signature for interface roughening.
- Observed extended prethermal plateaus for smooth interfaces.
- Found rapid domain wall decay above the roughening transition.
Conclusions:
- Interface properties significantly influence quantum dynamics.
- The roughening transition marks a critical change in interface behavior.
- Rydberg atomic systems provide a viable platform for experimental validation.
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