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Updated: Jul 2, 2025

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金属表面附近的电子摩擦:将核量子效应与环聚合物分子动力学相结合

Rui-Hao Bi1,2, Wenjie Dou1,2,3

  • 1Department of Chemistry, School of Science, Westlake University, Hangzhou, Zhejiang 310024, China.

The Journal of chemical physics
|February 21, 2024
PubMed
概括

这项研究引入了一种新方法,即用环聚合物分子动力学 (EF-RPMD) 进行电子摩擦,以准确地模拟金属表面非adiabatic动力学中的量子效应. 该方法捕捉了诸如零点能量和道化等基本量子现象.

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Atomic Nuclei: Nuclear Relaxation Processes01:23

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In the absence of an external magnetic field, nuclear spin states are degenerate and randomly oriented. When a magnetic field is applied, the spins begin to precess and orient themselves along (lower energy) or against (higher energy) the direction of the field. At equilibrium, a slight excess population of spins exists in the lower energy state. Because the direction of the magnetic field is fixed as the z-axis,  the precessing magnetic moments are randomly oriented around the z-axis.
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