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arXiv 1507.03043quant-phcond-mat.otherphysics.chem-phphysics.comp-ph
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自旋系统的量子力学对应原理及其在某些磁共振问题中的应用

The quantum mechanics correspondence principle for spin systems and its application for some magnetic resonance problems

Victor Henner, Andrey Klots, Tatyana Belozerova

摘要:

随着粒子数目的增加,相互作用的量子磁矩问题变得指数复杂。因此,经典方程经常被使用,但是将量子问题还原为经典问题的有效性应该是合理的。本文提出了对应原理,它表明偶极相互作用自旋系统的经典运动方程与量子运动方程具有相同的形式。基于自旋系统对应原理的经典模拟为研究不同的宏观自旋物理现象提供了一个实用的工具。三个经典的磁共振问题在固体被认为是作为例子-自由感应衰减(FID),自旋回波和帕克偶极子。

英文摘要:

Problems of interacting quantum magnetic moments become exponentially complex with increasing number of particles. As a result, classical equations are often used but the validity of reduction of a quantum problem to a classical problem should be justified. In this paper we formulate the correspondence principle, which shows that the classical equations of motion for a system of dipole interacting spins have identical form with the quantum equations. The classical simulations based on the correspondence principle for spin systems provide a practical tool to study different macroscopic spin physics phenomena. Three classical magnetic resonance problems in solids are considered as examples - free induction decay (FID), spin echo and the Pake doublet.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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