Probing the neutron's electric neutrality with Ramsey spectroscopy of gravitational quantum states of ultracold neutrons

被引：20

作者：

Durstberger-Rennhofer, Katharina ^{[1
]}

Jenke, Tobias ^{[1
]}

Abele, Hartmut ^{[1
]}

机构：

[1] Vienna Univ Technol, Atominst, A-1020 Vienna, Austria

来源：

PHYSICAL REVIEW D | 2011年 / 84卷 / 03期

基金：

奥地利科学基金会;

关键词：

EXPERIMENTAL LIMIT; CHARGE QUANTIZATION; FIELD; ATOMS;

D O I：

10.1103/PhysRevD.84.036004

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We propose to test the electric neutrality of neutrons by a new technique using the spectroscopy of quantum states of ultracold neutrons in the gravity potential above a vertical mirror. The new technique is an application of Ramsey's method of separated oscillating fields to neutron's quantum states in the gravity potential of the Earth. In the presence of an electric field E-z parallel or antiparallel to the direction of the acceleration of the Earth, g, the energy of the quantum states changes due to an additional electrostatic potential if a neutron carries a nonvanishing charge. In the long run our new method has the potential to improve the current limit of 10(-21)q(e) for the electric charge of the neutron by 2 orders of magnitude.

引用

页数：5

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