Related Experiment Video
Updated: May 6, 2026
07:56
A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference
Published on: September 5, 2019
9.8K
Entanglement rates and area laws.
Karel Van Acoleyen1, Michaël Mariën, Frank Verstraete
1Department of Physics and Astronomy, Ghent University, Krijgslaan 281, S9, 9000 Gent, Belgium.
Physical Review Letters
|November 12, 2013
Summary
We established an optimal upper bound for entanglement generation rate in bipartite quantum systems. This significantly improves previous entanglement bounds and has implications for quantum many-body systems and entanglement entropy area laws.
Area of Science:
- Quantum Information Theory
- Condensed Matter Physics
Background:
- Understanding entanglement generation is crucial for quantum technologies.
- Previous bounds on entanglement generation rates were limited.
Purpose of the Study:
- To derive an optimal upper bound for entanglement generation rate in bipartite systems.
- To investigate the relationship between entanglement entropy and adiabatic connections in gapped quantum many-body systems.
Main Methods:
- Derivation of an upper bound for entanglement generation rate.
- Analysis of the scaling of this bound with subsystem dimension.
- Application to gapped quantum many-body spin systems.
Main Results:
- An optimal upper bound on the maximal entanglement generation rate was proven.
- The bound shows exponential improvement over prior results.
- A condition for satisfying the entanglement entropy area law in gapped systems was established.
Conclusions:
- The new bound provides a tighter constraint on quantum information processing.
- The findings clarify the connection between entanglement entropy and topological order in quantum phases.
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