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Zeeman splitting of zero-bias anomaly in Luttinger liquids

A. V. Shytov·L. I. Glazman·O. A. Starykh
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Abstract

Tunnelling density of states (DoS) in Luttinger liquid has a dip at zero energy, commonly known as the zero-bias anomaly (ZBA). In the presence of a magnetic field, in addition to the zero-bias anomaly, the DoS develops two peaks separated from the origin by the Zeeman energy. We find the shape of these peaks at arbitrary strength of the electron-electron interaction. The developed theory is applicable to various kinds of quantum wires, including carbon nanotubes.

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A. V. Shytov, L. I. Glazman, O. A. Starykh. 2002-11-15. Zeeman splitting of zero-bias anomaly in Luttinger liquids. https://doi.org/10.1103/physrevlett.91.046801

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