Graded transmission in a bent orifice

被引：3

作者：

Granot, E ^{[1
]}

机构：

[1] Tel Aviv Univ, Raymond & Beverly Sackler Fac Exact Sci, Sch Phys & Astron, IL-69978 Tel Aviv, Israel

来源：

PHYSICAL REVIEW B | 1999年 / 60卷 / 20期

关键词：

D O I：

10.1103/PhysRevB.60.14172

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We calculate the transmission of a bent orifice. The bending angle phi is assumed to be small [phi much less than 1 and also theta = root(omega-omega(c))omega(c)much less than 1, when omega is the incoming particle energy, and omega(c)=((h) over bar pi/L)(2)/2m is the threshold one, L is the orifice width]. We find graded transmission: There is a critical angle phi(c)approximate to theta. For phi< phi(c) \t\(2)congruent to 1, and for phi>phi(c) the transmission is dropped abruptly to \t\(2)approximate to theta(2). We suggest an explanation for this phenomenon. [S0163-1829(99)01443-5].

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页码：14172 / 14176

页数：5

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