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 …

Four decades after its prediction, the axion remains the most compelling solution to the
strong-CP problem and a well-motivated dark matter candidate, inspiring a host of elegant …

We report on a search for ultralow-mass axionlike dark matter by analyzing the ratio of the
spin-precession frequencies of stored ultracold neutrons and Hg 199 atoms for an axion …

When ultralight axion dark matter encounters a static magnetic field, it sources an effective
electric current that follows the magnetic field lines and oscillates at the axion Compton …

The next generation of axion direct-detection experiments may rule out or confirm axions as
the dominant source of dark matter. We develop a general likelihood-based framework for …

Increasingly stringent limits from LHC searches for new physics, coupled with lack of
convincing signals of weakly interacting massive particle (WIMP) in dark matter searches …

This work tabulates measured and derived values of coefficients for Lorentz and CPT
violation in the standard-model extension. Summary tables are extracted listing maximal …

We highlight the progress, current status, and open challenges of QCD-driven physics, in
theory and in experiment. We discuss how the strong interaction is intimately connected to a …

We demonstrate that massive fields, such as dark matter, can directly produce a
cosmological evolution of the fundamental constants of nature. We show that a scalar or …

Ultralight axion-like particles are well-motivated dark matter candidates introduced by
theories beyond the standard model of particle physics. However, directly constraining their …