Hydrogen Spectroscopy and Fundamental Physics

Lichten, William

doi:10.1007/978-3-642-88421-4_4

Cited by 1 publication

(1 citation statement)

References 24 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Indeed, at the time of writing of the comprehensive review of hydrogen spectroscopy ref. [43], the 2s − 8, 10, 12d transitions provided the most accurate determination of the Rydberg constant, to one part in 10 10 [44]. In fact, the limitation on further improvement comes not from the natural width of the spectral lines but from the accuracy of the optical laser frequencies.…”

Section: S − 2s and 2s − Nd (N ∼ 10) Transitions In H And Anti-hmentioning

confidence: 99%

Strong equivalence, Lorentz and CPT violation, anti-hydrogen spectroscopy and gamma-ray burst polarimetry

Shore

2005

Nuclear Physics B

107

View full text Add to dashboard Cite

The strong equivalence principle, local Lorentz invariance and CPT symmetry are fundamental ingredients of the quantum field theories used to describe elementary particle physics. Nevertheless, each may be violated by simple modifications to the dynamics while apparently preserving the essential fundamental structure of quantum field theory itself. In this paper, we analyse the construction of strong equivalence, Lorentz and CPT violating Lagrangians for QED and review and propose some experimental tests in the fields of astrophysical polarimetry and precision atomic spectroscopy. In particular, modifications of the Maxwell action predict a birefringent rotation of the direction of linearly polarised radiation from synchrotron emission which may be studied using radio galaxies or, potentially, gamma-ray bursts. In the Dirac sector, changes in atomic energy levels are predicted which may be probed in precision spectroscopy of hydrogen and anti-hydrogen atoms, notably in the Doppler-free, two-photon 1s − 2s and 2s − nd (n ∼ 10) transitions.

show abstract

Section: S − 2s and 2s − Nd (N ∼ 10) Transitions In H And Anti-hmentioning

confidence: 99%