V
Vollrath M. Axt
Researcher at University of Bayreuth
Publications - 149
Citations - 2111
Vollrath M. Axt is an academic researcher from University of Bayreuth. The author has contributed to research in topics: Quantum dot & Phonon. The author has an hindex of 24, co-authored 149 publications receiving 1730 citations.
Papers
More filters
Journal ArticleDOI
Phonon-assisted population inversion of a single InGaAs/GaAs quantum dot by pulsed laser excitation.
J. H. Quilter,Alistair J. Brash,Feng Liu,Martin Glässl,Andreas M. Barth,Vollrath M. Axt,Andrew J. Ramsay,M. S. Skolnick,A. M. Fox +8 more
TL;DR: A new method is demonstrated to realize the population inversion of a single InGaAs/GaAs quantum dot excited by a laser pulse tuned within the neutral exciton phonon sideband by rapid thermalization of the optically dressed states via incoherent phonon-assisted relaxation.
Journal ArticleDOI
Real-time path integrals for quantum dots: Quantum dissipative dynamics with superohmic environment coupling
Journal ArticleDOI
Proposed robust and high-fidelity preparation of excitons and biexcitons in semiconductor quantum dots making active use of phonons.
TL;DR: The proposed protocols make use of the phonon-induced relaxation towards photon dressed states in optically driven quantum dots and combine the simplicity of traditional Rabi oscillation schemes with the robustness of adiabatic rapid passage schemes to provide an on-demand, fast, and almost perfect state preparation even at strong carrier-phonon interaction where other schemes fail.
Journal ArticleDOI
Phonon-assisted robust and deterministic two-photon biexciton preparation in a quantum dot
TL;DR: In this paper, the authors investigated both experimentally and theoretically a simple yet more robust and flexible alternative to Rabi oscillation-type biexciton preparation protocols traditionally used for semiconductor quantum dots.
Journal ArticleDOI
Ginzburg-Landau theory for multiband superconductors: Microscopic derivation
Natalia V. Orlova,A. A. Shanenko,Milorad V. Milošević,François M. Peeters,Alexei Vagov,Vollrath M. Axt +5 more
TL;DR: In this paper, the Ginzburg-Landau (GL) theory was derived from the multiband BCS Hamiltonian for a general case with an arbitrary number of bands and arbitrary interaction matrix.