title: Competing effects of interactions and spin-orbit coupling in a quantum wire.
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 Datta-Das transistor.
authors.affiliation: Département de Physique, Université de Fribourg, CH-1700 Fribourg, Switzerland.
authors.forename: V
authors.initials: V
authors.lastname: Gritsev
authors.forename: G
authors.initials: G
authors.lastname: Japaridze
authors.forename: M
authors.initials: M
authors.lastname: Pletyukhov
authors.forename: D
authors.initials: D
authors.lastname: Baeriswyl