131 citations · 1.5k across the 69 of their papers we have counts for
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Magnetoexcitons in cuprous oxide
Frank Schweiner, Jörg Main, Günter Wunner +6
Two of the most striking experimental findings when investigating exciton spectra in cuprous oxide using high-resolution spectroscopy are the observability and the fine structure s…
dependent exchange interaction of the ortho exciton in CuO
Frank Schweiner, Jörg Main, Günter Wunner +1
When treating the exchange interaction of Wannier excitons, usually only the leading terms of the analytic and the nonanalytic exchange interaction are considered. However, higher…
Bose-Einstein condensates with balanced gain and loss beyond mean-field theory
Dennis Dast, Daniel Haag, Holger Cartarius +2
Most of the work done in the field of Bose-Einstein condensates with balanced gain and loss has been performed in the mean-field approximation using the PT-symmetric Gross-Pitaevsk…
Impact of the valence band structure of CuO on excitonic spectra
Frank Schweiner, Jörg Main, Matthias Feldmaier +2
We present a method to calculate the exciton spectra of all direct semiconductors with a complex valence band structure. The Schrödinger equation is solved using a complete basis s…
A model of three coupled wave guides and third order exceptional points
W D Heiss, G Wunner
A -symmetric model for three interacting wave guides is investigated. Each wave guide is represented by an attractive -function potential being in equidistant positi…
Rydberg systems in parallel electric and magnetic fields: an improved method for finding exceptional points
Matthias Feldmaier, Jörg Main, Frank Schweiner +2
Exceptional points are special parameter points in spectra of open quantum systems, at which resonance energies degenerate and the associated eigenvectors coalesce. Typical example…