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Competing effects of interactions and spin-orbit coupling in a quantum wire
  KTH/Nordita/SU seminar in Theoretical Physics [before December 2013]

Wednesday 28 March 2007
from 11:00 to 12:00
at FA31
Speaker : G.I. Japaridze (Andronikashvili Institute of Physics Tbilisi, Georgia)
Abstract : We study the interplay of electron-electron interactions and Rashba spin-orbit coupling in one-dimensional ballistic wires. Using the renormalization group approach we construct the phase diagram in terms of Rashba coupling, Tomonaga-Luttinger stiffness and backward scattering strength. We identify the parameter regimes with a dynamically generated spin gap and show where the Luttinger liquid prevails. We also discuss the consequences for the operation of the spintronical devices lika the Datta-Das transistor.

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