111 citations · 475 across the 15 of their papers we have counts for
11 papers · 1 filter
Phonon-assisted excitation transfer in quantum dot molecules
E. Rozbicki, P. Machnikowski
We derive a quantum-kinetic description of phonon-assisted F{ö}rster transfer between two coupled quantum dots (a quantum dot molecule). We show that the exciton state decays to th…
Two-photon coherent polarization flipping of confined excitons
P. Machnikowski
A two-photon process leading to coherent transitions between the two circularly polarized exciton states in a quantum dot is studied. It is shown that optical flipping of the excit…
Four wave mixing spectroscopy of quantum dot molecules
A. Sitek, P. Machnikowski
We study theoretically the nonlinear four wave mixing (FWM) response of an ensemble of coupled pairs of quantum dots (quantum dot molecules). We discuss the shape of the FWM echo s…
"Which path" decoherence in quantum dot experiments
K. Roszak, P. Machnikowski
We analyze and interpret recent optical experiments with semiconductor quantum dots. We derive a quantitative relation between the amount of information transferred into the enviro…
Manifestation of fundamental quantum complementarities in time-domain interference experiments with quantum dots: A theoretical analysis
P. Machnikowski
A theoretical analysis is presented showing that fundamental complementarity between the particle-like properties of an exciton confined in a semiconductor quantum dot and the abil…
Reducing decoherence of the confined exciton state in a quantum dot by pulse-sequence control
V. M. Axt, P. Machnikowski, T. Kuhn
We study the phonon-induced dephasing of the exciton state in a quantum dot excited by a sequence of ultra-short pulses. We show that the multiple-pulse control leads to a consider…