130 citations · 1.9k across the 80 of their papers we have counts for
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Spin dynamics of hot excitons in diluted magnetic semiconductors with spin-orbit interaction
Florian Ungar, Pablo Ignacio Tamborenea, Vollrath Martin Axt
We explore the impact of a Rashba-type spin-orbit interaction in the conduction band on the spin dynamics of hot excitons in diluted magnetic semiconductor quantum wells. In materi…
Anisotropic Superconductors Between Types I and II
T. T. Saraiva, A. Vagov, V. M. Axt +2
Self-duality or matching between the magnetic and condensate characteristic lengths is a fundamental property of isotropic superconductors at the critical Bogomolnyi point (B-point…
Role of excited states in the dynamics of excitons and their spins in diluted magnetic semiconductors
Florian Ungar, Moritz Cygorek, Vollrath Martin Axt
We theoretically investigate the impact of excited states on the dynamics of the exciton ground state in diluted magnetic semiconductor quantum wells. Exploiting the giant Zeeman s…
Emission-frequency separated high quality single-photon sources enabled by phonons
Michael Cosacchi, Florian Ungar, Moritz Cygorek +2
We demonstrate theoretically that the single-photon purity of photons emitted from a quantum dot exciton prepared by phonon-assisted off-resonant excitation can be significantly hi…
Phonon-induced enhancement of photon entanglement in quantum dot-cavity systems
Tim Seidelmann, Florian Ungar, Andreas M. Barth +4
We report on simulations of the degree of polarization entanglement of photon pairs simultaneously emitted from a quantum dot-cavity system that demand revisiting the role of phono…
Origins of overshoots in the exciton spin dynamics in semiconductors
Florian Ungar, Moritz Cygorek, Vollrath Martin Axt
We investigate the origin of overshoots in the exciton spin dynamics after resonant optical excitation. As a material system, we focus on diluted magnetic semiconductor quantum wel…