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Updated: Jul 20, 2025
00:07
A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference
Published on: September 5, 2019
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Entanglement propagation and dynamics in non-additive quantum systems
Guido Giachetti1, Nicolò Defenu2
1SISSA and INFN Sezione di Trieste, Via Bonomea 265, 34136, Trieste, Italy.
Scientific Reports
|July 31, 2023
Summary
Long-range interacting quantum systems exhibit novel entanglement dynamics. Novel scaling regimes emerge at intermediate sizes, offering insights for quantum simulators and contrasting with local systems.
Area of Science:
- Quantum physics
- Many-body systems
- Quantum information
Background:
- Long-range interacting quantum systems are key for quantum technologies.
- Non-additivity challenges traditional entanglement scaling and transport mechanisms.
Purpose of the Study:
- To investigate entanglement entropy dynamics in many-body systems with long-range interactions.
- To explore novel scaling regimes beyond the thermodynamic limit.
Main Methods:
- Analysis of entanglement entropy dynamics.
- Study of systems with diverging internal energy contributions from two-body potentials.
- Comparison with local many-body systems under Floquet driving.
Main Results:
- Entanglement dynamics are suppressed in the strict thermodynamic limit.
- Novel scaling regimes appear at intermediate system sizes.
- Multiple resonant modes can be triggered, influencing global dynamics.
Conclusions:
- Quantitative predictions for entanglement propagation shape and timescales are provided.
- Findings pave the way for observing these phases in quantum simulators.
- The study contrasts these dynamics with local systems under Floquet driving.
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