44 citations · 58 across the 2 of their papers we have counts for
5 papers
Generation and detection of mode-locked spin coherence in (In,Ga)As/GaAs quantum dots by laser pulses of long duration
S. Spatzek, S. Varwig, M. M. Glazov +5
Using optical pulses of variable duration up to 80 ps, we report on spin coherence initialization and its subsequent detection in n-type singly-charged quantum dots, subject to a t…
Optical control of coherent interactions between quantum dot electron spins
S. Spatzek, A. Greilich, Sophia E. Economou +7
Coherent interactions between spins in quantum dots are a key requirement for quantum gates. We have performed pump-probe experiments in which pulsed lasers emitting at different p…
Effect of pump-probe detuning on the Faraday rotation and ellipticity signals of mode-locked spins in InGaAs quantum dots
M. M. Glazov, I. A. Yugova, S. Spatzek +6
We have studied the Faraday rotation and ellipticity signals in ensembles of singly-charged (In,Ga)As/GaAs quantum dots by pump-probe spectroscopy. For degenerate pump and probe we…
Ultrafast optical rotations of electron spins in quantum dots
A. Greilich, Sophia E. Economou, S. Spatzek +5
Coherent manipulation of quantum bits (qubits) on time scales much shorter than the coherence time is a key prerequisite for quantum information processing. Electron spins in quant…
Collective single mode precession of electron spins in a quantum dot ensemble
A. Greilich, S. Spatzek, I. A. Yugova +6
We show that the spins of all electrons, each confined in a quantum dot of an (In,Ga)As/GaAs dot ensemble, can be driven into a single mode of precession about a magnetic field. Th…