79 citations · 87 across the 4 of their papers we have counts for
4 papers
Synchronization of Quasi-Particle Excitations in a Quantum Gas with Cavity-Mediated Interactions
Gabriele Natale, Alexander Baumgärtner, Justyna Stefaniak +5
Driven-dissipative quantum systems can undergo transitions from stationary to dynamical phases, reflecting the emergence of collective non-equilibrium behavior. We study such a tra…
Bandstructure of a coupled BEC-cavity system: effects of dissipation and geometry
David Baur, Simon Hertlein, Alexander Baumgärtner +4
We present a theoretical model for a transversally driven Bose-Einstein condensate coupled to an optical cavity. We focus on the interplay between different coherent couplings, whi…
Stability and decay of subradiant patterns in a quantum gas with photon-mediated interactions
Alexander Baumgärtner, Simon Hertlein, Tom Schmit +5
Metastability and its relaxation mechanisms challenge our understanding of the stability of quantum many-body systems, revealing a gap between the microscopic dynamics of the indiv…
Self-oscillating pump in a topological dissipative atom-cavity system
Davide Dreon, Alexander Baumgärtner, Xiangliang Li +3
Pumps are transport mechanisms in which direct currents result from a cyclic evolution of the potential. As Thouless has shown, the pumping process can have topological origins, wh…