title: Zeeman splitting of zero-bias anomaly in Luttinger liquids.
abstract: Tunneling density of states (DOS) in Luttinger liquid has a dip at zero energy, commonly known as the zero-bias anomaly. 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 show that these finite-bias anomalies are characterized by a power-law behavior of the DOS and the differential conductance, and find the corresponding exponents at arbitrary strength of the electron-electron interaction. The developed theory is applicable to various kinds of quantum wires, including carbon nanotubes.
authors.affiliation: Institute for Theoretical Physics, University of California, Santa Barbara, California 93106-4030, USA.
authors.forename: A V
authors.initials: AV
authors.lastname: Shytov
authors.forename: L I
authors.initials: LI
authors.lastname: Glazman
authors.forename: O A
authors.initials: OA
authors.lastname: Starykh