Nonequilibrium Spin Dynamics: From Protons in Water to a Gauge Theory of Spin-Orbit Coupling

Symmetry, Spin Dynamics and the Properties of Nanostructures, Ed. Vitalii Dugaev and Andrzej Wal and Jozef Barnas, World Scientificp. 64 - 85 (2016)

Nonequilibrium Spin Dynamics: From Protons in Water to a Gauge Theory of Spin-Orbit Coupling

I. V. Tokatly, E. Ya. Sherman

Nonequilibrium dynamics {of spin degrees of freedom} in condensed matter, ranging from classical liquids to solids and ultracold atomic gases, is one the focus topics in physics. Here we present a gauge theory of spin dynamics in spin-orbit coupled gases for a ``pure'' gauge realization of the spin-orbit coupling field. This approach allows one to {describe} the spin dynamics of Fermi gases in terms of exact general response functions and to map it on the density dynamics in a dual system without spin-orbit coupling. We apply this approach to electrons in disordered two-dimensional structures and to cold atomic gases of interacting fermions with synthetic spin-orbit coupling at very low temperatures.

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Doi
http://dx.doi.org/10.1142/9789814740371_0004
ISBN
978-981-4740-36-4

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