dbos – Page 246 – Kavli Institute Pre-Print Publications

Engineering Fractional Chern Insulators through Periodic Strain in Monolayer Graphene and Transition Metal Dichalcogenides

Posted by dbos July 17, 2024UCAS

Kavli Affiliate: Zheng Zhu | First 5 Authors: Yuchen Liu, Zheng Zhu, , , | Summary: We propose the realization of interaction-driven insulators in periodically strained monolayer graphene and transition metal dichalcogenides (TMDs). Through extensive many-body exact diagonalization, we provide compelling evidence for various fractional Chern insulators (FCIs) in both strained monolayer graphene and TMDs, […]

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Engineering Fractional Chern Insulators through Periodic Strain in Monolayer Graphene and Transition Metal Dichalcogenides

Posted by dbos July 17, 2024UCAS

Kavli Affiliate: Zheng Zhu | First 5 Authors: Yuchen Liu, Zheng Zhu, , , | Summary: We propose the realization of interaction-driven insulators in periodically strained monolayer graphene and transition metal dichalcogenides (TMDs). By analyzing the tunable band structure and band geometry via strain, and performing extensive many-body exact diagonalization of a realistic model, we […]

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Engineering Fractional Chern Insulators through Periodic Strain in Monolayer Graphene and Transition Metal Dichalcogenides

Posted by dbos July 17, 2024July 29, 2024UCAS

Kavli Affiliate: Zheng Zhu | First 5 Authors: Yuchen Liu, Zheng Zhu, , , | Summary: We propose the realization of interaction-driven insulators in periodically strained monolayer graphene and transition metal dichalcogenides (TMDs). By analyzing the tunable band structure and band geometry via strain, and performing extensive many-body exact diagonalization of a realistic model, we […]

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Improved Nonlocality Certification via Bouncing between Bell Operators and Inequalities

Posted by dbos July 17, 2024Peking

Kavli Affiliate: Ke Wang | First 5 Authors: Weikang Li, Mengyao Hu, Ke Wang, Shibo Xu, Zhide Lu | Summary: Bell nonlocality is an intrinsic feature of quantum mechanics, which can be certified via the violation of Bell inequalities. It is therefore a fundamental question to certify Bell nonlocality from experimental data. Here, we present […]

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Improved Nonlocality Certification via Bouncing between Bell Operators and Inequalities

Posted by dbos July 17, 2024July 29, 2024Peking

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Turning Generative Models Degenerate: The Power of Data Poisoning Attacks

Posted by dbos July 17, 2024July 29, 2024UCAS

Kavli Affiliate: Yi Zhou | First 5 Authors: Shuli Jiang, Swanand Ravindra Kadhe, Yi Zhou, Farhan Ahmed, Ling Cai | Summary: The increasing use of large language models (LLMs) trained by third parties raises significant security concerns. In particular, malicious actors can introduce backdoors through poisoning attacks to generate undesirable outputs. While such attacks have […]

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Motion and Structure from Event-based Normal Flow

Posted by dbos July 17, 2024UCAS

Kavli Affiliate: Yi Zhou | First 5 Authors: Zhongyang Ren, Bangyan Liao, Delei Kong, Jinghang Li, Peidong Liu | Summary: Recovering the camera motion and scene geometry from visual data is a fundamental problem in the field of computer vision. Its success in standard vision is attributed to the maturity of feature extraction, data association […]

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Motion and Structure from Event-based Normal Flow

Posted by dbos July 17, 2024July 29, 2024UCAS

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Rigidity of the subelliptic heat kernel on $operatorname{SU}(2)$

Posted by dbos July 16, 2024Peking

Kavli Affiliate: Jing Wang | First 5 Authors: Maria Gordina, Jing Wang, , , | Summary: We study heat kernel rigidity for the Lie group $operatorname{SU}left( 2 right)$ kernel equipped with a sub-Riemannian structure. We prove that a metric measure space equipped with a heat kernel of a special form is bundle-isometric to the Hopf […]

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UrbanWorld: An Urban World Model for 3D City Generation

Posted by dbos July 16, 2024July 29, 2024Peking

Kavli Affiliate: Jiansheng Chen | First 5 Authors: Yu Shang, Jiansheng Chen, Hangyu Fan, Jingtao Ding, Jie Feng | Summary: Cities, as the most fundamental environment of human life, encompass diverse physical elements such as buildings, roads and vegetation with complex interconnection. Crafting realistic, interactive 3D urban environments plays a crucial role in constructing AI […]

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