title: Nondestructive optical measurements of a single electron spin in a quantum dot.
abstract: Kerr rotation measurements on a single electron spin confined in a charge-tunable semiconductor quantum dot demonstrate a means to directly probe the spin off-resonance, thus minimally disturbing the system. Energy-resolved magneto-optical spectra reveal information about the optically oriented spin polarization and the transverse spin lifetime of the electron as a function of the charging of the dot. These results represent progress toward the manipulation and coupling of single spins and photons for quantum information processing.
authors.affiliation: Center for Spintronics and Quantum Computation, University of California, Santa Barbara, CA 93106, USA.
authors.forename: J
authors.initials: J
authors.lastname: Berezovsky
authors.forename: M H
authors.initials: MH
authors.lastname: Mikkelsen
authors.forename: O
authors.initials: O
authors.lastname: Gywat
authors.forename: N G
authors.initials: NG
authors.lastname: Stoltz
authors.forename: L A
authors.initials: LA
authors.lastname: Coldren
authors.forename: D D
authors.initials: DD
authors.lastname: Awschalom