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quant-ph2026

Complete Existence Classification of Seven-Partite Absolutely Maximally Entangled States

Fei Shi, Xiande Zhang, Qi Zhao +1

We prove that an absolutely maximally entangled state of seven qudits exists if and only if the local dimension satisfies . Prior to this work, to the best of our knowledg…

quant-ph2026

Quantum state determinability from local marginals is universally robust

Wenjun Yu, Fei Shi, Giulio Chiribella +1

A fundamental problem in quantum physics is to establish whether a multiparticle quantum state can be uniquely determined from its local marginals. In theory, this problem has been…

quant-ph2025

Exploring quantum weight enumerators from the -qubit parallelized SWAP test

Fei Shi, Kaiyi Guo, Xiande Zhang +1

Quantum weight enumerators are fundamental tools for analyzing quantum error-correcting codes and multipartite entanglement, offering insights into the existence of quantum error-c…

quant-ph2025

Experimental Multipartite Entanglement Detection With Minimal-Size Correlations

Dian Wu, Fei Shi, Jia-Cheng Sun +5

Multiparticle entanglement is a valuable resource for quantum technologies, including measurement based quantum computing, quantum secret sharing, and a variety of quantum sensing…

quant-ph2025

Approximate k-uniform states: definition, construction and applications

Kaiyi Guo, Fei Shi, You Zhou +1

-Uniform states are fundamental to quantum information and computing, with applications in multipartite entanglement and quantum error-correcting codes (QECCs). Prior work has p…

quant-ph2024

Detecting entanglement and nonlocality with minimum observable length

Zhuo Chen, Fei Shi, Qi Zhao

Quantum entanglement and nonlocality are foundational to quantum technologies, driving quantum computation, communication, and cryptography innovations. To benchmark the capabiliti…