Chiral torsional effect
Z. V. Khaidukov+*, M. A. Zubkov ×
+Institute for Theoretical and Experimental Physics, 117259 Moscow, Russia
*Moscow Institute of Physics and Technology, 141700 Dolgoprudny, Russia
×Physics Department, Ariel University, 40700 Ariel, Israel
Abstract
We propose the new nondissipative transport effect - the
appearance of axial current of thermal quasiparticles in the presence of
background gravity with torsion. For the non-interacting model of
massless Dirac fermions the response of the axial current to torsion is
derived. The chiral vortical effect appears to be the particular case of
the chiral torsional effect. The proposed effect may be observed in the
condensed matter systems with emergent relativistic invariance
(Weyl/Dirac semimetals and the 3He-A superfluid).