title: Theory of the pseudospin resonance in semiconductor bilayers.
abstract: The pseudospin degree of freedom in a semiconductor bilayer gives rise to a collective mode analogous to the ferromagnetic-resonance mode of a ferromagnet. We present a many-body theory of the dependence of the energy and the damping of this mode on layer separation d. Based on these results, we discuss the possibilities of realizing transport-current driven pseudospin-transfer oscillators in semiconductors, and of using the pseudospin-transfer effect as an experimental probe of intersubband plasmons.
authors.affiliation: NEST-CNR-INFM and Scuola Normale Superiore, I-56126 Pisa, Italy.
authors.forename: Saeed H
authors.initials: SH
authors.lastname: Abedinpour
authors.forename: Marco
authors.initials: M
authors.lastname: Polini
authors.forename: A H
authors.initials: AH
authors.lastname: MacDonald
authors.forename: B
authors.initials: B
authors.lastname: Tanatar
authors.forename: M P
authors.initials: MP
authors.lastname: Tosi
authors.forename: G
authors.initials: G
authors.lastname: Vignale