17 citations · 42 across the 7 of their papers we have counts for
7 papers
Time crystals in cavity-BEC systems
Jayson G. Cosme, Ludwig Mathey
The understanding of light-induced dynamical states continues to be a challenging and fruitful pursuit of science. This pursuit is supported by quantum simulation of dynamical phen…
Torus bifurcation of a dissipative time crystal
Jayson G. Cosme, Phatthamon Kongkhambut, Anton Bölian +5
Using a quantum gas setup consisting of a Bose-Einstein condensate strongly coupled to a high-finesse optical cavity by a transverse pump laser, we experimentally observe an instab…
Optimal parametric control of transport across a Josephson junction
Hannah Kleine-Pollmann, Guido Homann, Ludwig Mathey
We present optimal control strategies for the DC transport across a Josephson junction. Specifically, we consider a junction in which the Josephson coupling is driven parametricall…
Observation of a phase transition from a continuous to a discrete time crystal
Phatthamon Kongkhambut, Jayson G. Cosme, Jim Skulte +4
Discrete (DTCs) and continuous time crystals (CTCs) are novel dynamical many-body states, that are characterized by robust self-sustained oscillations, emerging via spontaneous bre…
Realizing limit cycles in dissipative bosonic systems
Jim Skulte, Phatthamon Kongkhambut, Hans Keßler +3
We propose a general mechanism for generating limit cycle (LC) oscillations by coupling a linear bosonic mode to a dissipative nonlinear bosonic mode. By analyzing the stability ma…
Equilibrium Parametric Amplification in Raman-Cavity Hybrids
H. P. Ojeda Collado, Marios H. Michael, Jim Skulte +2
Parametric resonances and amplification have led to extraordinary photoinduced phenomena in pump-probe experiments. While these phenomena manifest themselves in out-of-equilibrium…
Dissipationless counterflow currents above T_c in bilayer superconductors
Guido Homann, Marios H. Michael, Jayson G. Cosme +1
We report the existence of dissipationless currents in bilayer superconductors above the critical temperature , assuming that the superconducting phase transition is dominated…