Quantum decoherence by magnetic fluctuations in a magnetic topological insulator

Posted by klaurent Berkeley

Kavli Affiliate: James Analytis| Summary:In magnetic topological insulators, spontaneous time-reversal symmetry breaking by intrinsic magnetic order can gap the topological surface spectrum, resulting in exotic properties like axion electrodynamics, the quantum anomalous Hall effect, and other topological magnetoelectric responses. Understanding the magnetic order and its coupling to topological states is essential to harness these properties. […]


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From Halos to Galaxies. IX. Estimate of Halo Assembly History for SDSS Galaxy Groups

Posted by dbos Peking

Kavli Affiliate: Feng Yuan | First 5 Authors: Cheqiu Lyu, Yingjie Peng, Yipeng Jing, Xiaohu Yang, Luis C. Ho | Summary: The properties of the galaxies are tightly connected to their host halo mass and halo assembly history. Accurate measurement of the halo assembly history in observation is challenging but crucial to the understanding of […]


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From Halos to Galaxies. IX. Estimate of Halo Assembly History for SDSS Galaxy Groups

Posted by dbos Peking

Kavli Affiliate: Luis C. Ho | First 5 Authors: Cheqiu Lyu, Yingjie Peng, Yipeng Jing, Xiaohu Yang, Luis C. Ho | Summary: The properties of the galaxies are tightly connected to their host halo mass and halo assembly history. Accurate measurement of the halo assembly history in observation is challenging but crucial to the understanding […]


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LANE: Logic Alignment of Non-tuning Large Language Models and Online Recommendation Systems for Explainable Reason Generation

Posted by dbos Peking

Kavli Affiliate: Jing Wang | First 5 Authors: Hongke Zhao, Songming Zheng, Likang Wu, Bowen Yu, Jing Wang | Summary: The explainability of recommendation systems is crucial for enhancing user trust and satisfaction. Leveraging large language models (LLMs) offers new opportunities for comprehensive recommendation logic generation. However, in existing related studies, fine-tuning LLM models for […]


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Long-lived magnetization in an atomic spin chain tuned to a diabolic point

Posted by klaurent Delft

Kavli Affiliate: Sander Otte | Summary:Scaling magnets down to where quantum size effects become prominent triggers quantum tunneling of magnetization (QTM), profoundly influencing magnetization dynamics. Measuring magnetization switching in an Fe atomic chain under a carefully tuned transverse magnetic field, we observe a non-monotonic variation of magnetization lifetimes around a level crossing, known as the […]


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