117 citations · 532 across the 12 of their papers we have counts for
12 papers
Linear Ultrastrong Optomechanical Interaction
Kahan Dare, Jannek J. Hansen, Iurie Coroli +3
Light-matter interaction in the ultrastrong coupling regime can be used to generate exotic ground states with two-mode squeezing and may be of use for quantum enhanced sensing. Cur…
Dry launching of silica nanoparticles in vacuum
Ayub Khodaee, Kahan Dare, Aisling Johnson +2
Clean loading of silica nanoparticles with a radius as small as ~50 nm is required for experiments in levitated optomechanics that operate in ultra-high vacuum. We present a cheap…
Squeezed light from a levitated nanoparticle at room temperature
Lorenzo Magrini, Victor A. Camarena-Chávez, Constanze Bach +2
Quantum measurements of mechanical systems can produce optical squeezing via ponderomotive forces. Its observation requires high environmental isolation and efficient detection, ty…
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…
Beyond the Tavis-Cummings model: revisiting cavity QED with atomic ensembles
Martin Blaha, Aisling Johnson, Arno Rauschenbeutel +1
The interaction of an ensemble of two-level atoms with a single mode electromagnetic field is described by the Tavis-Cummings model. There, the collectively enhanced light-matt…
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…
Monitoring squeezed collective modes of a one-dimensional Bose gas after an interaction quench using density ripples analysis
Max Schemmer, Aisling Johnson, Isabelle Bouchoule
We investigate the out-of-equilibrium dynamics following a sudden quench of the interaction strength, in a one-dimensional quasi-condensate trapped at the surface of an atom chip.…
Long-lived non-thermal states realized by atom losses in one-dimensional quasi-condensates
A. Johnson, S. Szigeti, M. Schemmer +1
We investigate the cooling produced by a loss process non selective in energy on a one-dimensional (1D) Bose gas with repulsive contact interactions in the quasi-condensate regime.…
A Monte Carlo wavefunction description of losses in a 1D Bose gas and cooling to the ground state by quantum feedback
Maximilian Schemmer, Aisling Johnson, Raphael Photopoulos +1
The effect of atom losses on a homogeneous one-dimensional Bose gas lying within the quasi-condensate regime is investigated using a Monte Carlo wavefunction approach. The evolutio…
Observation of scaling in the dynamics of a strongly quenched quantum gas
Eike Nicklas, Markus Karl, Moritz Höfer +6
We report on the experimental observation of scaling in the time evolution following a sudden quench into the vicinity of a quantum critical point. The experimental system, a two-c…
Momentum-space correlations of a one-dimensional Bose gas
Bess Fang, Aisling Johnson, Tommaso Roscilde +1
Analyzing the noise in the momentum profiles of single realizations of one-dimensional Bose gases, we present the experimental measurement of the full momentum-space density correl…
Quench-induced breathing mode of one-dimensional Bose gases
Bess Fang, Giuseppe Carleo, Aisling Johnson +1
We measure the position- and momentum- space breathing dynamics of trapped one-dimensional Bose gases. The profile in real space reveals sinusoidal width oscillations whose frequen…