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Quantum elasticity in Debye solids

机译:德拜固体中的量子弹性

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The rigid behaviour of a crystal lattice submitted to sudden and localized events (such as emission, absorption and scattering of quanta and/or light particles) is currently treated in terms of the well known Debye-Waller expression. Starting from first principles, and referring to solids described according to the Debye model, we present here a rigorous and general expression of the fraction of recoilless events, of which the Debye-Waller form is shown to represent only a first approximation, holding in the case of very low temperature solids. (c) 2005 Elsevier Ltd. All rights reserved.
机译:当前,根据众所周知的德拜-沃勒(Debye-Waller)表达来处理经受突然和局部事件(例如,量子和/或光粒子的发射,吸收和散射)的晶格的刚性行为。从第一原理开始,并参考根据德拜模型描述的固体,在此我们给出无后坐力事件分数的严格而通用的表示,其中德拜-沃勒形式仅表示第一近似值,低温固体的情况。 (c)2005 Elsevier Ltd.保留所有权利。

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