48 citations · 354 across the 25 of their papers we have counts for
25 papers
Dynamical phases of a BEC in a bad optical cavity at optomechanical resonance
Gage W. Harmon, Giovanna Morigi, Simon B. Jäger
We study the emergence of dynamical phases of a Bose-Einstein condensate that is optomechanically coupled to a dissipative cavity mode and transversally driven by a laser. We focus…
Continuous cavity-QED with an atomic beam
Francesca Famà, Sheng Zhou, Benedikt Heizenreder +5
Atoms coupled to cavities provide an exciting playground for the study of fundamental interactions of atoms mediated through a common channel. Many of the applications of cavity-QE…
Spin self-organization in an optical cavity facilitated by inhomogeneous broadening
Marc Nairn, Luigi Giannelli, Giovanna Morigi +3
We study the onset of collective spin-self-organization in a thermal ensemble of driven two-level atoms confined in an optical cavity. The atoms spontaneously form a spin-pattern a…
Quantum Synchronization and Dissipative Quantum Sensing
Gaurav M. Vaidya, Simon B. Jäger, Athreya Shankar
We study the phenomenon of quantum synchronization from the viewpoint of quantum metrology. By interpreting quantum self-sustained oscillators as dissipative quantum sensors, we de…
Speeding Up Squeezing with a Periodically Driven Dicke Model
Jarrod T. Reilly, Simon B. Jäger, John Drew Wilson +3
We present a simple and effective method to create highly entangled spin states on a faster timescale than that of the commonly employed one-axis twisting (OAT) model. We demonstra…
Dissipative Dicke time crystals: an atoms' point of view
Simon B. Jäger, Jan Mathis Giesen, Imke Schneider +1
We develop and study an atom-only description of the Dicke model with time-periodic couplings between atoms and a dissipative cavity mode. The cavity mode is eliminated giving rise…
Coherence Properties of the Repulsive Anyon-Hubbard Dimer
Martin Bonkhoff, Simon B. Jäger, Imke Schneider +2
One-dimensional anyonic models of the Hubbard type show intriguing ground-state properties, effectively transmuting between Bose-Einstein and Fermi-Dirac statistics. The simplest m…
Optimal Generators for Quantum Sensing
Jarrod T. Reilly, John Drew Wilson, Simon B. Jäger +2
We propose a computationally efficient method to derive the unitary evolution that a quantum state is most sensitive to. This allows one to determine the optimal use of an entangle…
Effective description of cooling and thermal shifts in quantum systems coupled to bosonic modes
Simon B. Jäger, Ralf Betzholz
Recently, an effective Lindblad master equation for quantum systems whose dynamics are coupled to dissipative bosonic modes has been introduced [Phys. Rev. Lett. 129, 063601 (2022)…
Measuring the environment of a Cs qubit with dynamical decoupling sequences
Sabrina Burgardt, Simon B. Jäger, Julian Feß +3
We report the experimental implementation of dynamical decoupling on a small, non-interacting ensemble of up to 25 optically trapped, neutral Cs atoms. The qubit consists of the tw…
Study of the long-range transverse field Ising model with fermionic Gaussian states
Michael P. Kaicher, Davide Vodola, Simon B. Jäger
We numerically study the one-dimensional long-range Transverse Field Ising Model (TFIM) in the antiferromagnetic (AFM) regime at zero temperature using Generalized Hartree-Fock (GH…
Beyond one-axis twisting: Simultaneous spin-momentum squeezing
John Drew Wilson, Simon B. Jäger, Jarrod T. Reilly +3
The creation and manipulation of quantum entanglement is central to improving precision measurements. A principal method of generating entanglement for use in atom interferometry i…
Mean-field Floquet theory for a three-level cold-atom laser
Gage W. Harmon, Jarrod T. Reilly, Murray J. Holland +1
We present a theoretical description for a lasing scheme for atoms with three internal levels in a -configuration and interacting with an optical cavity. The use of a -level…
Quantum critical behavior of entanglement in lattice bosons with cavity-mediated long-range interactions
Shraddha Sharma, Simon B. Jaeger, Rebecca Kraus +2
We analyze the ground-state entanglement entropy of the extended Bose-Hubbard model with infinite-range interactions. This model describes the low-energy dynamics of ultracold boso…
Lindblad master equations for quantum systems coupled to dissipative bosonic modes
Simon B. Jäger, Tom Schmit, Giovanna Morigi +2
We present a general approach to derive Lindblad master equations for a subsystem whose dynamics is coupled to dissipative bosonic modes. The derivation relies on a Schrieffer-Wolf…
Adiabatic Control of Decoherence-Free-Subspaces in an Open Collective System
Jarrod T. Reilly, Simon B. Jäger, John Cooper +1
We propose a method to adiabatically control an atomic ensemble using a decoherence-free subspace (DFS) within a dissipative cavity. We can engineer a specific eigenstate of the sy…
Collective emission of an atomic beam into an off-resonant cavity mode
Simon B. Jäger, Haonan Liu, John Cooper +1
We study the collective emission of a beam of atomic dipoles into an optical cavity. Our focus lies on the effect of a finite detuning between the atomic transition frequency and t…
Entropy transfer from a quantum particle to a classical coherent light field
John P. Bartolotta, Simon B. Jäger, Jarrod T. Reilly +4
In the field of light-matter interactions, it is often assumed that a classical light field that interacts with a quantum particle remains almost unchanged and thus contains nearly…
Quenches across the self-organization transition in multimode cavities
Tim Keller, Valentin Torggler, Simon B. Jäger +3
A cold dilute atomic gas in an optical resonator can be radiatively cooled by coherent scattering processes when the driving laser frequency is tuned close but below the cavity res…
Phases of cold atoms interacting via photon-mediated long-range forces
Tim Keller, Simon B. Jäger, Giovanna Morigi
Atoms in high-finesse optical resonators interact via the photons they multiply scatter into the cavity modes. The dynamics is characterized by dispersive and dissipative optomecha…
Semiclassical theory of synchronization-assisted cooling
Simon B. Jäger, Minghui Xu, Stefan Schütz +2
We analyse the dynamics leading to radiative cooling of an atomic ensemble confined inside an optical cavity when the atomic dipolar transitions are incoherently pumped and can syn…
Mean-field theory of atomic self-organization in optical cavities
Simon B. Jäger, Stefan Schütz, Giovanna Morigi
Photons mediate long-range optomechanical forces between atoms in high finesse resonators, which can induce the formation of ordered spatial patterns. When a transverse laser drive…
Supercooling of Atoms in an Optical Resonator
Minghui Xu, Simon B. Jäger, S. Schütz +3
We investigate laser cooling of an ensemble of atoms in an optical cavity. We demonstrate that when atomic dipoles are sychronized in the regime of steady-state superradiance, the…
Dissipation-assisted prethermalization in long-range interacting atomic ensembles
Stefan Schütz, Simon B. Jäger, Giovanna Morigi
We theoretically characterize the semiclassical dynamics of an ensemble of atoms after a sudden quench across a driven-dissipative second-order phase transition. The atoms are driv…