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Updated: Mar 18, 2026

A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference
Published on: September 5, 2019
Experimental realization of an entanglement access network and secure multi-party computation
X-Y Chang1, D-L Deng1,2, X-X Yuan1
1Center for Quantum Information, IIIS, Tsinghua University, Beijing 100084, PR China.
Abstract:
To construct a quantum network with many end users, it is critical to have a cost-efficient way to distribute entanglement over different network ends. We demonstrate an entanglement access network, where the expensive resource, the entangled photon source at the telecom wavelength and the core communication channel, is shared by many end users. Using this cost-efficient entanglement access network, we report experimental demonstration of a secure multiparty computation protocol, the privacy-preserving secure sum problem, based on the network quantum cryptography.
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