1.7k citations · 3.6k across the 52 of their papers we have counts for
34 papers · 1 filter
Limits of Stable Near-Field Probing in Nanophotonic Traps
Johannes Piotrowski, Constanze Bach, Nicolás Vera Paz +2
Near-fields around nanophotonic structures and waveguides can be used to optically interface particles ranging from atoms and molecules to microscopic biological and synthetic part…
Hybrid Trapping of Cold Atoms with Surface Forces and Blue-Detuned Evanescent Light on a Nanophotonic Waveguide
Riccardo Pennetta, Antoine Glicenstein, Philipp Schneeweiss +2
We demonstrate a novel hybrid nanophotonic trap for cold neutral atoms, leveraging surface forces for attraction and blue-detuned evanescent light for repulsion. We attribute the a…
Photon Transport in a Gas of Two-Level Atoms: Unveiling Quantum Light Creation
Leonid Yatsenko, Martin Cordier, Lucas Pache +4
We present a theoretical analysis of nearly monochromatic light propagation through a gas of two-level atoms using the Heisenberg-Langevin equation method. Our focus is on the evol…
Simple analytical model describing the collective nonlinear response of an ensemble of two-level emitters weakly coupled to a waveguide
Max Schemmer, Martin Cordier, Lucas Pache +3
We model and investigate the collective nonlinear optical response of an ensemble of two-level emitters that are weakly coupled to a single-mode waveguide. Our approach generalizes…
Emergence of second-order coherence in superfluorescence
Constanze Bach, Felix Tebbenjohanns, Christian Liedl +2
We experimentally investigate the second-order quantum coherence function of a superradiant burst in a cascaded quantum system. We chirally (i.e. direction-dependently) couple roug…
Light-matter interaction at the transition between cavity and waveguide QED
Daniel Lechner, Riccardo Pennetta, Martin Blaha +3
Experiments based on cavity quantum electrodynamics (QED) are widely used to study the interaction of a light field with a discrete frequency spectrum and emitters. More recently,…
Tailoring photon statistics with an atom-based two-photon interferometer
Martin Cordier, Max Schemmer, Philipp Schneeweiss +2
Controlling the photon statistics of light is paramount for quantum science and technologies. Recently, we demonstrated that transmitting resonant laser light past an ensemble of t…
Observation of superradiant bursts in a cascaded quantum system
Christian Liedl, Felix Tebbenjohanns, Constanze Bach +3
Dicke superradiance describes the collective radiative decay of a fully inverted ensemble of two-level atoms. We experimentally investigate this effect for a chiral, i.e.,~directio…
Higher-order mean-field theory of chiral waveguide QED
Kasper J. Kusmierek, Sahand Mahmoodian, Martin Cordier +6
Waveguide QED with cold atoms provides a potent platform for the study of non-equilibrium, many-body, and open-system quantum dynamics. Even with weak coupling and strong photon lo…
Collective excitation and decay of waveguide-coupled atoms: from timed Dicke states to inverted ensembles
Christian Liedl, Sebastian Pucher, Felix Tebbenjohanns +2
The collective absorption and emission of light by an ensemble of atoms is at the heart of many fundamental quantum optical effects and the basis for numerous applications. However…
Observation of coherent coupling between super- and subradiant states of an ensemble of cold atoms collectively coupled to a single propagating optical mode
Riccardo Pennetta, Daniel Lechner, Martin Blaha +3
We discuss the evolution of the quantum state of an ensemble of atoms that are coupled via a single propagating optical mode. We theoretically show that the quantum state of N atom…
Collective radiative dynamics of an ensemble of cold atoms coupled to an optical waveguide
Riccardo Pennetta, Martin Blaha, Aisling Johnson +4
We experimentally and theoretically investigate collective radiative effects in an ensemble of cold atoms coupled to a single-mode optical nanofiber. Our analysis unveils the micro…
Atomic spin-controlled non-reciprocal Raman amplification of fibre-guided light
Sebastian Pucher, Christian Liedl, Shuwei Jin +2
In a non-reciprocal optical amplifier, gain depends on whether the light propagates forwards or backwards through the device. Typically, one requires either the magneto-optical eff…
Bragg condition for scattering into a guided optical mode
B. Olmos, C. Liedl, I. Lesanovsky +1
We theoretically investigate light scattering from an array of atoms into the guided modes of a waveguide. We show that the scattering of a plane wave laser field into the waveguid…
Unraveling two-photon entanglement via the squeezing spectrum of light traveling through nanofiber-coupled atoms
Jakob Hinney, Adarsh S. Prasad, Sahand Mahmoodian +5
We observe that a weak guided light field transmitted through an ensemble of atoms coupled to an optical nanofiber exhibits quadrature squeezing. From the measured squeezing spectr…
Probing Surface-Bound Atoms with Quantum Nanophotonics
Daniel Hümmer, Oriol Romero-Isart, Arno Rauschenbeutel +1
Quantum control of atoms at ultrashort distances from surfaces would open a new paradigm in quantum optics and offer a novel tool for the investigation of near-surface physics. Her…
Imaging and localizing individual atoms interfaced with a nanophotonic waveguide
Yijian Meng, Christian Liedl, Sebastian Pucher +2
Single particle-resolved fluorescence imaging is an enabling technology in cold-atom physics. However, so far, this technique was not available for nanophotonic atom-light interfac…
Interaction signatures and non-Gaussian photon states from a strongly driven atomic ensemble coupled to a nanophotonic waveguide
B. Olmos, G. Buonaiuto, P. Schneeweiss +1
We study theoretically a laser-driven one-dimensional chain of atoms interfaced with the guided optical modes of a nanophotonic waveguide. The period of the chain and the orientati…
Correlating photons using the collective nonlinear response of atoms weakly coupled to an optical mode
Adarsh S. Prasad, Jakob Hinney, Sahand Mahmoodian +6
Photons in a nonlinear medium can repel or attract each other, resulting in a strongly correlated quantum many-body system. Typically, such strongly correlated states of light aris…
Observation of Multimode Strong Coupling of Cold Atoms to a 30-m Long Optical Resonator
Aisling Johnson, Martin Blaha, Alexander E. Ulanov +3
We report on the observation of multimode strong coupling of a small ensemble of atoms interacting with the field of a 30-m long fiber resonator containing a nanofiber section. The…
Heating in Nanophotonic Traps for Cold Atoms
Daniel Hümmer, Philipp Schneeweiss, Arno Rauschenbeutel +1
Laser-cooled atoms that are trapped and optically interfaced with light in nanophotonic waveguides are a powerful platform for fundamental research in quantum optics as well as for…
Quantum acousto-optic control of light-matter interactions in nanophotonic networks
G. Calajo, M. J. A. Schuetz, H. Pichler +4
We analyze the coupling of atoms or atom-like emitters to nanophotonic waveguides in the presence of propagating acoustic waves. Specifically, we show that strong index modulations…
Observation of ultra-strong spin-motion coupling for cold atoms in optical microtraps
A. Dareau, Y. Meng, P. Schneeweiss +1
We realize a mechanical analogue of the Dicke model, achieved by coupling the spin of individual neutral atoms to their quantized motion in an optical trapping potential. The atomi…
Near-ground-state cooling of atoms optically trapped 300nm away from a hot surface
Y. Meng, A. Dareau, P. Schneeweiss +1
Laser-cooled atoms coupled to nanophotonic structures constitute a powerful research platform for the exploration of new regimes of light-matter interaction. While the initializati…