130 citations · 995 across the 59 of their papers we have counts for
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Phonon-induced quantum ratchet in the exciton spin dynamics in diluted magnetic semiconductors in a magnetic field
Florian Ungar, Moritz Cygorek, Vollrath Martin Axt
Magnetically doped semiconductors are well known for their giant Zeeman splittings which can reach several meV even in relatively small external magnetic fields. After preparing a…
Phonon impact on the dynamics of resonantly excited and hot excitons in diluted magnetic semiconductors
Florian Ungar, Moritz Cygorek, Vollrath Martin Axt
Phonons are well known to be the main mechanism for the coupling between bright and dark excitons in nonmagnetic semiconductors. Here, we investigate diluted magnetic semiconductor…
Many-body correlations brought to light in absorption spectra of diluted magnetic semiconductors
Florian Ungar, Moritz Cygorek, Vollrath Martin Axt
Diluted magnetic semiconductors are materials well known to exhibit strong correlations which typically manifest in carrier-mediated magnetic ordering. In this Rapid Communication,…
Path-integral approach for nonequilibrium multi-time correlation functions of open quantum systems coupled to Markovian and non-Markovian environments
Michael Cosacchi, Moritz Cygorek, Florian Ungar +3
Using a real-time path integral approach we develop an algorithm to calculate multi-time correlation functions of open few-level quantum systems that is applicable to highly nonequ…
Trend reversal in the magnetic-field dependence of exciton spin-transfer rates in diluted magnetic semiconductors due to non-Markovian dynamics
Florian Ungar, Moritz Cygorek, Vollrath Martin Axt
We investigate theoretically the influence of an external magnetic field on the spin dynamics of excitons in diluted magnetic semiconductor quantum wells. To this end, we apply a q…