Spectral properties of one-dimensional spiral spin density wave states
arXiv:1112.3045 · doi:10.1103/PhysRevB.85.121101
Abstract
We provide a full characterization of the spectral properties of spiral spin density wave (SSDW) states which emerge in one-dimensional electron systems coupled to localized magnetic moments or quantum wires with spin-orbit interactions. We derive analytic results for the spectral function, local density of states and optical conductivity in the low-energy limit by using field theory techniques. We identify various collective modes and show that the spectrum strongly depends on the interaction strength between the electrons. The results provide characteristic signatures for an experimental detection of SSDW states.
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