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arXiv · 2010.03238

Hydrodynamic theory of chiral angular momentum generation in metals

Hiroshi Funaki·Gen Tatara
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Abstract

We present a hydrodynamic theory to describe a chiral electron system with a Weyl spin-orbit interaction on a field-theoretic basis. Evaluating the momentum flux density as a linear response to a driving electric field, we derive an equation of motion for the orbital angular momentum. It is shown that the chiral nature leads to a dynamic bulk angular momentum generation by inducing a global torque as a response to the applied field. The steady state angular momentum is calculated taking account of rotational viscosity.

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Hiroshi Funaki, Gen Tatara. 2020-10-07. Hydrodynamic theory of chiral angular momentum generation in metals. https://doi.org/10.1103/physrevresearch.3.023160

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