We report the 2018 self-consistent values of constants and conversion factors of physics and
chemistry recommended by the Committee on Data of the International Science Council …

Particle physics today faces the challenge of explaining the mystery of dark matter, the origin
of matter over anti-matter in the Universe, the origin of the neutrino masses, the apparent …

The standard model of particle physics is remarkably successful because it is consistent with
(almost) all experimental results. However, it fails to explain dark matter, dark energy and the …

Measurements of the fine-structure constant α require methods from across subfields and
are thus powerful tests of the consistency of theory and experiment in physics. Using the …

A key step toward demonstrating a quantum system that can address difficult problems in
physics and chemistry will be performing a computation beyond the capabilities of any …

This article reviews recent developments in tests of fundamental physics using atoms and
molecules, including the subjects of parity violation, searches for permanent electric dipole …

At the core of the “proton radius puzzle” is a four–standard deviation discrepancy between
the proton root-mean-square charge radii (rp) determined from the regular hydrogen (H) and …

Recent developments in frequency metrology and optical clocks have been based on
electronic transitions in atoms and singly charged ions as references. The control over all …

Quantum electrodynamics (QED) is one of the most fundamental theories of physics and has
been shown to be in excellent agreement with experimental results,,,–. In particular …

Bound three-body quantum systems are important for fundamental physics, because they
enable tests of quantum electrodynamics theory and provide access to the fundamental …