Výsledky vyhledávání - "Liu, ChengCheng"

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Fermions in the fuzzy sphere Kaluza-Klein model

We consider spinors on the total space of a Kaluza-Klein model with fuzzy sphere fibre and geometrically realised Dirac operator on the product. We show that a single massless spinor on the product appears on spacetime as multiplets of spinors with a

Externí odkaz: http://arxiv.org/abs/2409.06668

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Akademický článek

Analysis of the COVID-19 Epidemic Transmission Network in Mainland China: K-Core Decomposition Study

Autor: Qin, Lei, Wang, Yidan, Sun, Qiang, Zhang, Xiaomei, Shia, Ben-Chang, Liu, Chengcheng

Publikováno v: JMIR Public Health and Surveillance, Vol 6, Iss 4, p e24291 (2020)

BackgroundSince the outbreak of COVID-19 in December 2019 in Wuhan, Hubei Province, China, frequent interregional contacts and the high rate of infection spread have catalyzed the formation of an epidemic network. ObjectiveThe aim of this study was

Externí odkaz: https://doaj.org/article/78ee73041ee74616a05ea49630e66b21

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Yang-Mills field from fuzzy sphere quantum Kaluza-Klein model

Autor: Liu, Chengcheng, Majid, Shahn

Using the framework of quantum Riemannian geometry, we show that gravity on the product of spacetime and a fuzzy sphere is equivalent under minimal assumptions to gravity on spacetime, an $su_2$-valued Yang-Mills field $A_{\mu i}$ and real-symmetric-

Externí odkaz: http://arxiv.org/abs/2312.14128

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Akademický článek

Design of UAV swarm identity authentication based on lightweight blockchain

Autor: GONG Haochen, HU Tao, WU Di, NIU Chaoyang, LIU Chengcheng, LIU Kaiyue, TIAN Zhifu, XU Ziliang, YANG Siwei, DENG Wenjie

Publikováno v: Zhihui kongzhi yu fangzhen, Vol 46, Iss 5, Pp 29-36 (2024)

Blockchain technology has several characteristics, including decentralisation, non-tampering, and cryptographic algorithms. These characteristics are the focus of research for distributed group network authentication. However, the existing blockchain

Externí odkaz: https://doaj.org/article/b496039179524ebc9a9960eac6b03167

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Quantum Kaluza-Klein theory with $M_2(\mathbb{C})$

Autor: Liu, Chengcheng, Majid, Shahn

Publikováno v: JHEP 09 (2023) 102

Following steps analogous to classical Kaluza-Klein theory, we solve for the quantum Riemannian geometry on $C^\infty(M)\otimes M_2(\mathbb{C})$ in terms of classical Riemannian geometry on a smooth manifold $M$, a finite quantum geometry on the alge

Externí odkaz: http://arxiv.org/abs/2303.06239

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