8 papers
Crossover from Rabi oscillations to adiabatic population switching in the Faraday optical control of quantum dot spins
Jan M. Kaspari, Zhe Xian Koong, Dorian A. Gangloff +2
Stimulated Raman transitions in Faraday geometry allow for simultaneous single-shot qubit readout and qubit control. It involves driving an unbalanced system via an auxiliary…
Telecom wavelength single-photon emission from quasi-resonantly excited InGaSb/AlGaSb quantum dots
Teemu Hakkarainen, Joonas Hilska, Arttu Hietalahti +10
Deterministic light sources capable of generating quantum states on-demand at wavelengths compatible with fiber optics and atmospheric transmission windows are essential for practi…
Higher-harmonic acoustic driving of quantum-dot optical transitions beyond Rabi-frequency resonance
Mateusz Kuniej, PaweÅ Machnikowski, MichaÅ GaweÅczyk
Acoustic control and coupling of quantum systems via phonons can enable miniaturized quantum technology devices for on-chip integration. Optically active quantum dots (QDs) are ess…
Coupling Quantum Dots to Elastic Waves in a Phononic Crystal Waveguide
Jakub RosiÅski, Jakub Rosiński, MichaÅ GaweÅczyk +6
We present a comprehensive study of quantum dot (QD) coupling to various phononic modes in a phononic waveguide, combining multiband kp and configuration-interaction (CI) QD state…
Hybrid acousto-optical spin control in quantum dots
Mateusz Kuniej, PaweÅ Machnikowski, MichaÅ GaweÅczyk
Mechanical degrees of freedom very weakly couple to spins in semiconductors. The inefficient coupling between phonons and single electron spins in semiconductor quantum dots (QDs)…
Hybrid acousto-optical swing-up state control in a quantum dot
Mateusz Kuniej, PaweÅ Machnikowski, MichaÅ GaweÅczyk
State transfer between different quantum systems is key for successful quantum technologies. Over long distances, photons are irreplaceable, but on short ranges in miniaturized com…