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 …

1. INTRODUCTION Beams of atoms and molecules are stalwart tools for spectroscopy and
studies of collisional processes. 1− 4 The supersonic expansion technique can create cold …

Presently under construction in Lund, Sweden, the European Spallation Source (ESS) will
be the world's brightest neutron source. As such, it has the potential for a particle physics …

In the last ten years extraordinary results in time and frequency metrology have been
demonstrated. Frequency-stabilization techniques for continuous-wave lasers and …

The reflection (or 'mirror') symmetry of space is among the fundamental symmetries of
physics. It is connected to the conservation law for the quantum number parity and a …

We review the status of precision measurements of weak neutral-current interactions,
mediated by the Z 0 boson, at Q 2≪ M 2 Z. They can be used to extract values for the weak …

We propose a novel approach to probe new fundamental interactions using isotope shift
spectroscopy in atomic clock transitions. As a concrete toy example we focus on the Higgs …

We discuss results of the most accurate to-date test of the low-energy electroweak sector of
the standard model of elementary particles. Combining previous measurements with our …

Studying the violation of parity and time-reversal invariance in atomic systems has proven to
be a very effective means of testing the electroweak theory at low energy and searching for …

Isotope shifts of transition frequencies in atoms constrain generic long-and intermediate-
range interactions. We focus on new physics scenarios that can be most strongly …