642 citations · 1.9k across the 21 of their papers we have counts for
5 papers · 1 filter
Periodic cavity state revivals from atomic frequency combs
Matthias Zens, Dmitry O. Krimer, Himadri S. Dhar +1
Spin ensembles with a comb-shaped spectrum have shown exciting properties as efficient quantum memories. Here, we present a rigorous theoretical study of such atomic frequency comb…
Emergence of PT-symmetry breaking in open quantum systems
Julian Huber, Peter Kirton, Stefan Rotter +1
The effect of PT-symmetry breaking in coupled systems with balanced gain and loss has recently attracted considerable attention and has been demonstrated in various photonic, elect…
Critical phenomena and nonlinear dynamics in a spin ensemble strongly coupled to a cavity. II. Semiclassical-to-quantum boundary
Matthias Zens, Dmitry O. Krimer, Stefan Rotter
We numerically study the dynamics and stationary states of a spin ensemble strongly coupled to a single-mode resonator subjected to loss and external driving. Employing a generaliz…
Critical phenomena and nonlinear dynamics in a spin ensemble strongly coupled to a cavity. I. Semiclassical approach
Dmitry O. Krimer, Matthias Zens, Stefan Rotter
We present a theoretical study on the nonlinear dynamics and stationary states of an inhomogeneously broadened spin ensemble coupled to a single-mode cavity driven by an external d…
Variational Renormalization Group for Dissipative Spin-Cavity Systems: Periodic Pulses of Nonclassical Photons from Mesoscopic Spin Ensembles
Himadri Shekhar Dhar, Matthias Zens, Dmitry O. Krimer +1
Mesoscopic spin ensembles coupled to a cavity offer the exciting prospect of observing complex nonclassical phenomena that pool the microscopic features from a few spins with those…