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Updated: Feb 11, 2026
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A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference
Published on: September 5, 2019
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Experimental entanglement of 25 individually accessible atomic quantum interfaces
Yunfei Pu1, Yukai Wu1,2, Nan Jiang1
1Center for Quantum Information, Institute for Interdisciplinary Information Sciences, Tsinghua University, Beijing 100084, PR China.
Science Advances
|May 5, 2018
Summary
Researchers created entanglement between multiple quantum interfaces, a key step for building the quantum internet and enabling secure quantum communication networks.
Area of Science:
- Quantum Information Science
- Quantum Communication Technology
Background:
- Quantum interfaces are crucial for connecting stationary and flying qubits, forming the backbone of the future quantum internet.
- Entanglement between these quantum interfaces is essential for establishing robust quantum networks.
Purpose of the Study:
- To generate and confirm multipartite entanglement between a record number of individually addressable quantum interfaces.
- To advance the development of quantum networks and long-distance quantum communication.
Main Methods:
- Utilized heralded detection of photon interference.
- Employed a multiplexed atomic quantum memory array with individually addressable quantum interfaces.
Main Results:
- Successfully generated multipartite entanglement between 25 (or 9) quantum interfaces.
- Confirmed genuine 22-partite (or 9-partite) entanglement, establishing a new record for individually addressable interfaces.
Conclusions:
- This work represents a significant advancement in creating large-scale entangled quantum systems.
- The demonstrated entanglement is vital for realizing practical quantum networks and multipartite quantum information processing.
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