SEARCH FOR SMALL VIOLATIONS OF THE SYMMETRIZATION POSTULATE IN AN EXCITED-STATE OF HELIUM

被引：47

作者：

DEILAMIAN, K

GILLASPY, JD

KELLEHER, DE

机构：

[1] National Institute of Standards and Technology, Physics Laboratory, Gaithersburg

来源：

PHYSICAL REVIEW LETTERS | 1995年 / 74卷 / 24期

关键词：

D O I：

10.1103/PhysRevLett.74.4787

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We have searched for the existence of the permutation symmetric 1s2s S1 state of helium in an atomic beam. Such a state directly violates the symmetrization postulate (SP) of quantum mechanics and implies a breakdown of the Pauli exclusion principle. Our data constrain recent SP-violating models at the 5 ppm level. This is the first experiment to look systematically for an SP-violating state with no multiple occupancy of a quantum state. © 1995 The American Physical Society.

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页码：4787 / 4790

页数：4

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