In their paper "Azimuthal backflow in light carrying orbital angular momentum," researchers from the Faculty of Physics, University of Warsaw, have shown the backflow effect in two dimensions.

The orbital angular momentum of electrons has long been considered a minor physical phenomenon, suppressed in most crystals ...

The grooves are at right angles to the local fields, and therefore purely radial fields create azimuthal grooves ... the physics of light by looking at what happens when orbital angular momentum is ...

The orbital angular momentum of electrons has long been considered a minor physical phenomenon, suppressed in most crystals and largely overlooked. Scientists have now discovered that in certain ...

In the current publication “Azimuthal backflow in light carrying orbital angular momentum”, which appeared in the prestigious journal “Optica”, researchers from the Faculty of Physics ...

A similar principle applies to measuring a particle’s spin angular momentum, which involves observing ... is in fact two angles: the azimuthal angle (like longitude on the Earth’s surface ...