28 papers
Correlation Geometry of Quantum Sensor Networks: Local-Global Information Flow and Local Privacy
Gong-Chu Li, Lei Chen, Xu-Song Hong +7
Quantum sensor networks (QSN) typically encode N unknown parameters while targeting a single linear combination, rendering the N-1 remaining parameters as nuisance directions. To r…
Loss and distinguishability effects in heralded entangled state generation with Gaussian resources
Yun-Long Cao, Xiao-Ye Xu, Wiwittawin Sukmas +2
The effects of optical loss and photon distinguishability on the heralded generation of entangled states based on Gaussian resources are quantitatively investigated. By incorporati…
Towards Robust Optimal Measurements Against Noise in Quantum Metrology
Xinglei Yu, Xinzhi Zhao, Liangsheng Li +4
Quantum parameter estimation utilizes quantum mechanical effects to attain higher measurement precision than classical schemes. In practical implementations, however, noise is inev…
Experimental genuine quantum nonlocality in the triangle network
Ning-Ning Wang, Chao Zhang, Huan Cao +8
In the last decade, it was understood that quantum networks involving several independent sources of entanglement which are distributed and measured by several parties allowed for…
Boosting Gaussian Boson Sampling using Optical Parametric Amplification Networks
Yukuan Zhao, Xiao-Ye Xu, Chuan-Feng Li +1
Gaussian Boson Sampling (GBS) provides a route toward demonstrating quantum computational advantage. However, optical loss, which reduces the entanglement in the system, can render…
Experimental detection of entanglement in multimode Gaussian states from high-order intensity correlation moments
Ze-Shan He, Yukuan Zhao, Hao-Shu Tian +4
Quantum universal invariants of a Gaussian state's covariance matrix, which can be derived from intensity correlation moments, have been adopted to characterize the entanglement pr…