358 citations · 758 across the 7 of their papers we have counts for
7 papers
Observation of a zero-energy excitation mode in the open Dicke model
Anton Bolian, Phatthamon Kongkhambut, Christoph Georges +6
Approaching phase boundaries in many-body systems can give rise to intriguing signatures in their excitation spectra. Here, we explore the excitation spectrum of a Bose-Einstein co…
Mott transition in a cavity-boson system: A quantitative comparison between theory and experiment
Rui Lin, Christoph Georges, Jens Klinder +6
The competition between short-range and cavity-mediated infinite-range interactions in a cavity-boson system leads to the existence of a superfluid phase and a Mott-insulator phase…
Non-destructive monitoring of Bloch oscillations in an optical cavity
H. Keßler, J. Klinder, B. P. Venkatesh +2
Bloch oscillations are a hallmark of coherent wave dynamics in periodic potentials. They occur as the response of quantum mechanical particles in a lattice if a weak force is appli…
Observation of a superradiant Mott insulator in the Dicke-Hubbard model
J. Klinder, H. Keßler, M. Reza Bakhtiari +2
It is well known that the bosonic Hubbard model possesses a Mott insulator phase. Likewise, it is known that the Dicke model exhibits a self-organized superradiant phase. By implem…
Dynamical phase transition in the open Dicke model
J. Klinder, H. Keßler, M. Wolke +2
The Dicke model with a weak dissipation channel is realized by coupling a Bose-Einstein condensate to an optical cavity with ultra-narrow bandwidth. We explore the dynamical critic…
Steering matter wave superradiance with an ultra-narrowband optical cavity
H. Keßler, J. Klinder, M. Wolke +1
A superfluid atomic gas is prepared inside an optical resonator with an ultra-narrow band width on the order of the single photon recoil energy. When a monochromatic off-resonant l…
Optomechanical atom-cavity interaction in the sub-recoil regime
H Keßler, J Klinder, M Wolke +1
We study the optomechanical interaction of a Bose-Einstein condensate with a single longitudinal mode of an ultra-high finesse standing wave optical resonator. As a unique feature…