539 citations · 5k across the 71 of their papers we have counts for
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Self-bound droplet clusters in laser-driven Bose-Einstein condensates
Yong-Chang Zhang, Valentin Walther, Thomas Pohl
We investigate a two-dimensional Bose-Einstein condensate that is optically driven via a retro-reflecting mirror, forming a single optical feedback loop. This induces a peculiar ty…
Asymmetric Rydberg blockade of giant excitons in Cuprous Oxide
Julian Heckötter, Valentin Walther, Stefan Scheel +3
The ability to generate and control strong long-range interactions via highly excited electronic states has been the foundation for recent breakthroughs in a host of areas, from at…
Electromagnetically induced transparency with CuO excitons in the presence of phonon coupling
Valentin Walther, Peter Grünwald, Thomas Pohl
Highly excited Rydberg states of excitons in CuO semiconductors provide a promising approach to explore and control strong particle interactions in a solid-state environment. A…
Strongly correlated states of light in chiral chains of three-level quantum emitters
Ole Aae Iversen, Thomas Pohl
We study the correlated transport of photons through a chain of three-level emitters that are coupled chirally to a photonic mode of a waveguide. It is found that this system can t…
Non-equilibrium quantum dynamics and formation of the Bose polaron
Magnus G. Skou, Thomas G. Skov, Nils B. Jørgensen +5
Advancing our understanding of non-equilibrium phenomena in quantum many-body systems remains among the greatest challenges in physics. Here, we report on the experimental observat…
Plasma-enhanced interaction and optical nonlinearities of CuO Rydberg excitons
Valentin Walther, Thomas Pohl
We theoretically investigate the nonlinear optical transmission through a cuprous oxide crystal for wavelengths that cover the series of highly excited excitons, observed in recent…