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Quantum phases from competing short- and long-range interactions in an optical lattice
Renate Landig, Lorenz Hruby, Nishant Dogra +4
Insights into complex phenomena in quantum matter can be gained from simulation experiments with ultracold atoms, especially in cases where theoretical characterization is challeng…
Measuring the dynamic structure factor of a quantum gas undergoing a structural phase transition
Renate Landig, Ferdinand Brennecke, Rafael Mottl +2
The dynamic structure factor is a central quantity describing the physics of quantum many-body systems, capturing structure and collective excitations of a material. In condensed m…
Roton-type mode softening in a quantum gas with cavity-mediated long-range interactions
R. Mottl, F. Brennecke, K. Baumann +3
Long-range interactions in quantum gases are predicted to give rise to an excitation spectrum of roton character, similar to that observed in superfluid helium. We investigate the…