Fundamental Vibration of Molecular Hydrogen

被引：138

作者：

Dickenson, G. D. ^{[1
]}

Niu, M. L. ^{[1
]}

Salumbides, E. J. ^{[1
,2
]}

Komasa, J. ^{[3
]}

Eikema, K. S. E. ^{[1
]}

Pachucki, K. ^{[4
]}

Ubachs, W. ^{[1
]}

机构：

[1] Vrije Univ Amsterdam, LaserLaB, Dept Phys & Astron, NL-1081 HV Amsterdam, Netherlands

[2] Univ San Carlos, Dept Phys, Cebu 6000, Philippines

[3] Adam Mickiewicz Univ, Fac Chem, PL-60780 Poznan, Poland

[4] Univ Warsaw, Fac Phys, PL-00681 Warsaw, Poland

来源：

PHYSICAL REVIEW LETTERS | 2013年 / 110卷 / 19期

关键词：

FREQUENCY; SHIFT; TRANSITIONS; CONSTANT; BAND;

D O I：

10.1103/PhysRevLett.110.193601

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The fundamental ground tone vibration of H-2, HD, and D-2 is determined to an accuracy of 2 x 10(-4) cm(-1) from Doppler-free laser spectroscopy in the collisionless environment of a molecular beam. This rotationless vibrational splitting is derived from the combination difference between electronic excitation from the X-1 Sigma(+)(g), v = 0, and v = 1 levels to a common EF1 Sigma(+)(g), v = 0 level. Agreement within 1 sigma between the experimental result and a full ab initio calculation provides a stringent test of quantum electrodynamics in a chemically bound system.

引用

页数：5

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