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首页> 外文期刊>Physica, B. Condensed Matter >Short-time single particle dynamics in quantum and molecular systems
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Short-time single particle dynamics in quantum and molecular systems

机译：量子和分子系统中的短时单粒子动力学

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摘要

Recent experimental and theoretical results on the short-time single particle dynamics of atomic and molecular systems are reviewed. Results on momentum distribution, n(p), and single particle mean kinetic energy, , are presented, both in atomic (quantum) systems such as He-3 and He-4 in the normal and superfluid state, and in molecular systems such as H-2, H2S and H2O. The main experimental technique employed for these measurements is known as deep inelastic neutron scattering, i.e. neutron scattering at high wavevector and energy transfers. This is the only experimental technique which allows the direct measurement of n(p) and , interesting physical quantities in any systems where the short-time dynamic behavior departs from the classical one. (C) 2004 Elsevier B.V. All rights reserved.
机译：综述了原子和分子系统短时单粒子动力学的最新实验和理论结果。给出了原子（量子）系统中正常和超流体状态下的He-3和He-4等动量分布n（p）和单粒子平均动能的结果。 H-2，H2S和H2O等系统。用于这些测量的主要实验技术被称为深层非弹性中子散射，即高波矢和能量转移下的中子散射。这是唯一一种可以直接测量n（p）和有趣的物理量的实验技术，在这些系统中，短时动态行为与经典行为不符。 （C）2004 Elsevier B.V.保留所有权利。

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