Vortex states of photons, electrons, and other particles are non-plane-wave solutions of the
corresponding wave equation with helicoidal wave fronts. These states possess an intrinsic …

Structured waves are ubiquitous for all areas of wave physics, both classical and quantum,
where the wavefields are inhomogeneous and cannot be approximated by a single plane …

Fundamental neutron physics, combining precision measurements and theory, probes
particle physics at short range with reach well beyond the highest energies probed by the …

Methods of preparation and analysis of structured waves of light, electrons, and atoms have
been advancing rapidly. Despite the proven power of neutrons for material characterization …

Slow neutrons possess several advantageous properties which make them useful probes for
a variety of exotic interactions, including some that can form at least some components of the …

Spin-orbit coupling of light has come to the fore in nanooptics and plasmonics, and is a key
ingredient of topological photonics and chiral quantum optics. We demonstrate a basic tool …

The self-imaging, or Talbot effect, that occurs with the propagation of periodically structured
waves has enabled several unique applications in optical metrology, image processing …

We present a theoretical formalism for scattering of twisted neutrons by nuclei in a kinematic
regime where interference between the Coulomb interaction and the strong interaction is …

We present a rigorous theoretical framework underpinning the technique of spin-echo
modulated small-angle neutron scattering (SEMSANS), and show how the technique can be …

Muon decay is self-analyzing; the spectral-angular distribution of the emitted electron
reveals the spin orientation of the polarized muon. Here, we show that the same feature …