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Optical Conductivity of a Two-Dimensional Electron Liquid with Spin-Orbit Interaction

Abdel-Khalek Farid·Eugene Mishchenko
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Abstract

The interplay of electron-electron interactions and spin-orbit coupling leads to a new contribution to the homogeneous optical conductivity of the electron liquid. The latter is known to be insensitive to many-body effects for a conventional electron system with parabolic dispersion. The parabolic spectrum has its origin in the Galilean invariance which is broken by spin-orbit coupling. This opens up a possibility for the optical conductivity to probe electron-electron interactions. We analyze the interplay of interactions and spin-orbit coupling and obtain optical conductivity beyond RPA.

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Abdel-Khalek Farid, Eugene Mishchenko. 2006-10-17. Optical Conductivity of a Two-Dimensional Electron Liquid with Spin-Orbit Interaction. https://doi.org/10.1103/physrevlett.97.096604

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