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Quantum Stochastic Communication via High-Dimensional Entanglement
Chao Zhang1,2, Jia-Le Miao1,2, Xiao-Min Hu1,2,3
1University of Science and Technology of China, CAS Key Laboratory of Quantum Information, Hefei 230026, China.
Physical Review Letters
|October 5, 2025
Summary
High-dimensional entanglement enables perfect stochastic communication using random access codes. This method avoids complex measurements and offers a practical optical solution for quantum information transmission.
Area of Science:
- Quantum Information Science
- Quantum Communication
Background:
- Entanglement enhances classical information transmission over quantum channels.
- Complex entangling measurements hinder practical application and scalability.
Purpose of the Study:
- Introduce a protocol for perfect stochastic communication using random access codes.
- Leverage high-dimensional entanglement to simplify quantum information tasks.
Main Methods:
- Developed a protocol utilizing high-dimensional entanglement.
- Implemented an optical setup with eight-dimensional entanglement.
- Employed multi-outcome detection for information processing.
Main Results:
- Achieved perfect performance in a random access code task.
- Demonstrated a protocol without requiring quantum interference at the measurement station.
- Successfully implemented the task in the high-dimensional regime.
Conclusions:
- High-dimensional entanglement offers a practical solution for stochastic communication.
- The developed method provides a robust way to certify entanglement dimensionality.
- This work simplifies complex quantum information primitives for practical use.
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