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Surface matter waves caused by the absorption of nonrelativistic particles

机译：非相对论粒子的吸收引起的表面物质波

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The existence of surface states of nonrelativistic particles at the interface between a vacuum and a layer of a material on a reflecting substrate, which are caused by the absorption in the layer rather than the presence of discrete levels, is established. The wave functions of such states (surface matter waves) are found and the domains of their existence in the complex plane of the "optical" potential (both attractive and repulsive) of the layer are determined. Threshold effects of the count of microparticles at the intersection of the boundaries of these domains are revealed. The spatial characteristics of the surface matter waves are calculated. An example of the layer composition providing the existence of such waves is given for ultracold neutrons. The increase in the loss of trapped ultracold neutrons owing to the excitation of the surface matter waves of these particles in the trap walls is discussed. (C) 2005 Pleiades Publishing, Inc.
机译：建立了在真空和反射基板上的材料层之间的界面上的非相对论粒子的表面状态的存在，该表面状态是由该层中的吸收而不是离散水平的存在引起的。找到这种状态的波函数（表面物质波），并确定它们在层的“光学”势（吸引和排斥）的复平面中存在的范围。揭示了在这些域的边界的交点处的微粒计数的阈值效应。计算了表面物质波的空间特征。对于超冷中子给出了提供这种波存在的层组成的一个例子。讨论了由于在捕集壁中这些粒子的表面物质波的激发而导致的被捕超冷中子损失的增加。 （C）2005年Pleiades Publishing，Inc.

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