Publications [#269148] of Maiken Mikkelsen

Papers Published
  1. Mikkelsen, MH; Berezovsky, J; Awschalom, DD, Ultrafast optical manipulation of single electron spins in quantum dots, Solid State Communications, vol. 149 no. 35-36 (2009), pp. 1451-1457 [doi] .

    Most schemes for quantum information processing require fast single qubit operations as well as initialization and read-out steps. Here we describe recent experimental realizations of schemes for time-resolved initialization, coherent control, and read-out of a single electron spin state in an individual quantum dot using all-optical techniques. The spin state is manipulated via the optical Stark effect using off-resonant, picosecond-scale optical pulses. The coherent rotation of a single electron spin state through arbitrary angles up to π radians is demonstrated, constituting a single qubit gate. This spin manipulation is directly monitored using time-resolved Kerr rotation spectroscopy allowing for the observation of the coherent evolution of a single electron spin state in time as well as revealing the spin lifetime and g-factor. © 2009 Elsevier Ltd. All rights reserved.