  The existence of pseudomagnetic helicons is predicted for strained Dirac and
Weyl materials. The corresponding collective modes are reminiscent of the usual
helicons in metals in strong magnetic fields but can exist even without a
magnetic field due to a strain-induced background pseudomagnetic field. The
properties of both pseudomagnetic and magnetic helicons are investigated in
Weyl matter using the formalism of the consistent chiral kinetic theory. It is
argued that the helicon dispersion relations are affected by the electric and
chiral chemical potentials, the chiral shift, and the energy separation between
the Weyl nodes. The effects of multiple pairs of Weyl nodes are also discussed.
A simple setup for experimental detection of pseudomagnetic helicons is
proposed.
