大质量粒子吸收的二阶贡献
Second order contributions to the absorption of massive particles
摘要：
最近，与多光子电离类似，有人提出多粒子电离也可以由大质量系统引起。我们在本文中探讨的可能性，多粒子吸收过程也可以发生大质量粒子。为了研究它，我们认为，在一个微扰的方式，一个模型的吸收说明了类似的格劳伯计划的光子和以前的分析物质波的相干性。这种方法的一个主要优点是，可以在一个明确的方式分析的入射系统的波函数的吸收率的依赖性。计算确认了二阶（两粒子）贡献的形式。
英文摘要：
Recently, in analogy with multiphoton ionization, it has been suggested that multiparticle ionization can also be induced by massive systems. We explore in this paper the possibility that multiparticle absorption processes can also take place for massive particles. To study it we consider, in a perturbative way, a model of absorption which illustrates the analogies with Glauber's scheme for photons and previous analysis on matter-waves coherence. A major advantage of this approach is that the dependence of the absorption rates on the wavefunction of the incident system can be analyzed in an explicit way. The calculations confirm the form of the second order (two-particle) contributions.
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