Some of the most sensitive methods of measuring magnetic fields use interactions of resonant light with atomic vapour. Recent developments in this vibrant field have led to improvements in ...

A permanent magnet is always magnetic. It has an invisible magnetic field. Only certain materials, such as iron, feel a magnetic force. Permanent magnets can come in lots of different shapes and ...

The main source of uncertainty in the theoretical calculation of the anomalous magnetic moment of the muon is the contribution of the so-called hadronic vacuum polarization (HVP). Traditionally ...