19 papers
Few-photon degenerate parametric resonance in a two-tone driven microwave resonator
Orjan Ameye, Jakob Koenig, Clinton Potts +2
Multi-tone external driving offers a route to parametric physics without directly modulating the device. However, the validity of the parametric response in the few-photon regime r…
Dissipation-induced superradiance in matter coupled to a self-interacting cavity
Sebastian Schmid, Matteo Soriente, Oded Zilberberg +1
Light-matter interactions are often modeled via the Dicke model, namely, by two-level systems coupled to a cavity mode. Alas, the threshold for superradiance is often experimentall…
Unraveling screening mechanisms in Kondo impurities using an NRG-MPS-based method
Lidia Stocker, Oded Zilberberg
The Kondo effect is a hallmark of strongly-correlated systems, where an impurity's local degrees of freedom are screened by conduction electrons, forming a many-body singlet. With…
Generalized master equation for driven quantum oscillators: microscopic origin of nonlinear dissipation and asymmetric resonances
Jakob Wagner, Jeff Maki, Oded Zilberberg +1
Driven nonlinear quantum oscillators are a central platform for quantum technologies, yet their dissipative dynamics are typically described using Lindblad or Caldeira-Leggett mast…
Nonequilibrium Kramers Turnover in a Kerr Parametric Oscillator
Daniel K. J. BoneÃ, Gabriel Margiani, Wolfgang Belzig +2
Activation processes govern noise-induced switching between long-lived states. In an equilibrium double well, the thermally activated switching rate exhibits a prefactor with a non…
Dynamical Phase Transitions Across Slow and Fast Regimes in a Two-Tone Driven Duffing Resonator
Soumya S. Kumar, Javier del Pino, Letizia Catalini +2
The response of nonlinear resonators to multifrequency driving reveals rich dynamics beyond conventional single-tone theory. We study a Duffing resonator under bichromatic excitati…