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Continuous multi-step pumping of the optical clock transition in alkaline-earth atoms with minimal perturbation
Christoph Hotter, David Plankensteiner, Georgy Kazakov +1
A suitable scheme to continuously create inversion on an optical clock transition with negligible perturbation is a key missing ingredient required to build an active optical atomi…
A versatile quantum simulator for coupled oscillators using a 1D chain of atoms trapped near an optical nanofiber
Daniela Holzmann, Matthias Sonnleitner, Helmut Ritsch
The transversely confined propagating light modes of a nano-photonic optical waveguide or nanofiber can mediate effectively infinite-range forces. We show that for a linear chain o…
Superradiant lasing in inhomogeneously broadened ensembles with spatially varying coupling
Anna Bychek, Christoph Hotter, David Plankensteiner +1
Theoretical studies of superradiant lasing on optical clock transitions predict a superb frequency accuracy and precision closely tied to the bare atomic linewidth. Such a superrad…
QuantumCumulants.jl: A Julia framework for generalized mean-field equations in open quantum systems
David Plankensteiner, Christoph Hotter, Helmut Ritsch
A full quantum mechanical treatment of open quantum systems via a Master equation is often limited by the size of the underlying Hilbert space. As an alternative, the dynamics can…
Nanoscale continuous quantum light sources based on driven dipole emitter arrays
Raphael Holzinger, Mariona Moreno-Cardoner, Helmut Ritsch
Regular arrays of two-level emitters at distances smaller that the transition wavelength collectively scatter, absorb and emit photons. The strong inter-particle dipole coupling cr…
Open Quantum-System Simulation of Faraday's Induction Law via Dynamical Instabilities
Elvia Colella, Arkadiusz Kosior, Farokh Mivehvar +1
We propose a novel type of a Bose-Hubbard ladder model based on an open quantum-gas--cavity-QED setup to study the physics of dynamical gauge potentials. Atomic tunneling along opp…