We present an accurate theoretical determination of rovibrational energy levels of the
hydrogen molecule and its isotopologues in its electronic ground state. We consider all …

The quantum electrodynamic correction to the energy of the hydrogen molecule has been
evaluated without expansion in the electron-proton mass ratio. The obtained results …

Spectroscopy of hydrogen can be used for a search into physics beyond the Standard
Model. Differences between the absorption spectra of the Lyman and Werner bands of H 2 …

Accurate transition frequencies of six lines of the (2-0) vibrational band of H2 are reported
near 1.2 μm, namely Q1–Q4, S0, and S1. These weak electric-quadrupole transitions were …

We recalculate the leading relativistic corrections for the ground electronic state of the
hydrogen molecule using the variational method with explicitly correlated functions that …

We observe that sub-GeV dark matter (DM) induces Casimir-Polder forces between
nucleons that can be accessed by experiments from nuclear to molecular scales. We …

We present an accurate measurement of the weak quadrupole S (2) 2-0 line in self-
perturbed D 2 and theoretical ab initio calculations of both collisional line-shape effects and …

1 Department of Physics and Astronomy and LaserLaB, VU University, De Boelelaan 1081,
1081 HV Amsterdam, The Netherlands 2 Department of Physics, University of San Carlos …

Dark sectors lying beyond the Standard Model and containing sub-GeV particles which are
bilinearly coupled to nucleons would induce quantum forces of the Casimir-Polder type in …

We report a direct measurement of the 1–0 R (0) vibrational transition frequency in ground-
state hydrogen deuteride (HD) using infrared-ultraviolet double resonance spectroscopy in a …