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 …

Both classical and quantum waves can form vortices: entities with helical phase fronts and
circulating current densities. These features determine the intrinsic orbital angular …

Recently, spatiotemporal optical vortex pulses carrying a purely transverse intrinsic orbital
angular momentum were generated experimentally [Optica 6, 1547 (2019) OPTIC8 2334 …

The general question, crucial to an understanding of the internal structure of the nucleon, of
how to split the total angular momentum of a photon or gluon into spin and orbital …

We give an exact self-consistent operator description of the spin and orbital angular
momenta, position, and spin-orbit interactions of nonparaxial light in free space. Both …

This book deals with theoretical bases of the modern optics division concerned with
coherent light fields with singularities characterized by phase uncertainty. Singular light …

We analyze spin and orbital angular momenta in monochromatic acoustic wave fields in a
homogeneous medium. Despite being purely longitudinal (curl-free), inhomogeneous …

In this Letter, we show that the electromagnetic duality symmetry, broken in the microscopic
Maxwell's equations by the presence of charges, can be restored for the macroscopic …

We propose a theoretical and practical framework for the study of light-matter interactions
and the angular momentum of light. Our proposal is based on helicity, total angular …

Bessel beam is the important member of the family of non-diffracting beams and has many
novel properties which can be used in many areas. However, the source of Bessel beam …