Title :
Unusual properties and control of the initial decoherence in quantum dots
Author_Institution :
Inst. fur Festkorpertheorie, Westfalischen Wilhelms-Univ., Munster, Germany
Abstract :
Pure dephasing is a genuine quantum kinetic process resulting in a nonexponential decay of optical signals with an unusual nonmonotonous temperature dependence of the decay time. The coherent controllability of the initial decoherence is demonstrated.
Keywords :
electromagnetic decays; electron-phonon interactions; high-speed optical techniques; light coherence; multiwave mixing; optical control; semiconductor quantum dots; coherent controllability; decay time; four-wave-mixing signal; initial decoherence control; nonexponential optical signal decay; pure dephasing; quantum dots; quantum kinetic process; unusual initial decoherence properties; unusual nonmonotonous temperature dependence; Controllability; Delay; Kinetic theory; Laser modes; Phonons; Polarization; Quantum dots; Signal analysis; Temperature dependence; Ultrafast optics;
Conference_Titel :
Quantum Electronics and Laser Science Conference, 2005. QELS '05
Print_ISBN :
1-55752-796-2
DOI :
10.1109/QELS.2005.1548844
