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Quantum Simulation
Entanglement Oscillations from Many-Body Quantum Scars
arXiv
Authors: Nicholas O'Dea, Adithya Sriram
Year
2024
Paper ID
38070
Status
Preprint
Abstract Read
~2 min
Abstract Words
103
Citations
N/A
Abstract
Quantum scars are nonthermal eigenstates that prevent thermalization of initial states with weight on the scars. When the scar states are equally spaced in energy, superpositions of scars show oscillating local observables that can be detected in experiments. However, we note that scarred models in the literature show fundamentally different scar entanglement dynamics: some show entanglement oscillations while others are completely frozen. We explain this freezing through a no-go theorem which we apply to more than a dozen scarred models in the literature. We also discuss a method for evading the no-go theorem by deforming the scarred models with frozen scar entanglement dynamics.
Why This Paper Matters
- This paper contributes to the Quantum Simulation research area in the Quantum Articles archive.
- It adds a 2024 reference point for readers tracking recent quantum research.
- Quantum scars are nonthermal eigenstates that prevent thermalization of initial states with weight on the scars.
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