5 papers
Wave chirality reversal without passing achirality
M. V. Berry, K. Y. Bliokh, J. M. Robbins
Chiral connectedness describes chiral structures that transform smoothly into their mirror images while never being achiral. The phenomenon is illustrated with a two-parameter fami…
Acoustic Chirality
Alex J. Vernon, Konstantin Y. Bliokh
We reveal a previously unknown continuous symmetry and conservation law in the equations of linear isotropic elasticity, which describe the chirality of elastic waves. We show that…
Subluminal and superluminal velocities of free-space photons
Konstantin Y. Bliokh
We consider rectilinear free-space propagation of electromagnetic wavepackets using electromagnetic field theory, scalar wavepacket propagation, and quantum-mechanical formalism. W…
Expectation Pauli-Lubanski vector and intrinsic angular momentum of relativistic wavepackets
Konstantin Y. Bliokh
In non-relativistic mechanics, the total (orbital) angular momentum (AM) of a spatially-distributed system can be decomposed into intrinsic and extrinsic contributions. In relativi…
On the Ehrenfest theorem and centroids of relativistic particles
Konstantin Y. Bliokh
We consider relativistic versions of the Ehrenfest relation between the expectation values of the coordinate and momentum of a quantum particle in free space: $d\langle {\bf r} \ra…