Zobrazeno 1 - 10
of 40
pro vyhledávání: '"Johnson, Aisling"'
Autor:
Dare, Kahan, Hansen, Jannek J., Coroli, Iurie, Johnson, Aisling, Aspelmeyer, Markus, Delić, Uroš
Publikováno v:
Phys. Rev. Research 6, L042025 (2024)
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. Current demonstrations of ultrastrong coupling have been performed in fun
Externí odkaz:
http://arxiv.org/abs/2305.16226
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 and simple experimental method for dry launching of silica nanoparticl
Externí odkaz:
http://arxiv.org/abs/2209.00482
Autor:
Magrini, Lorenzo, Camarena-Chávez, Victor A., Bach, Constanze, Johnson, Aisling, Aspelmeyer, Markus
Quantum measurements of mechanical systems can produce optical squeezing via ponderomotive forces. Its observation requires high environmental isolation and efficient detection, typically achieved by using optical cavities and cryogenic cooling. Here
Externí odkaz:
http://arxiv.org/abs/2202.09322
Autor:
Pennetta, Riccardo, Blaha, Martin, Johnson, Aisling, Lechner, Daniel, Schneeweiss, Philipp, Volz, Jürgen, Rauschenbeutel, Arno
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 microscopic dynamics of the system, showing that collective interactions be
Externí odkaz:
http://arxiv.org/abs/2109.00860
The interaction of an ensemble of $N$ two-level atoms with a single mode electromagnetic field is described by the Tavis-Cummings model. There, the collectively enhanced light-matter coupling strength is given by $g_N = \sqrt{N} \bar{g}_1$, where $\b
Externí odkaz:
http://arxiv.org/abs/2107.04583
Autor:
Johnson, Aisling, Blaha, Martin, Ulanov, Alexander E., Rauschenbeutel, Arno, Schneeweiss, Philipp, Volz, Jürgen
Publikováno v:
Phys. Rev. Lett. 123, 243602 (2019)
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 collective light--matter coupling strength exceeds the free spectral
Externí odkaz:
http://arxiv.org/abs/1905.07353
Autor:
Johnson, Aisling
L'objet de cette thèse est l'étude théorique et expérimentale de gaz de Bose à une dimension (1D), confinés à la surface d'une micro-structure. Une part importante du travail de thèse a été la modification du montage expérimental: le syst
Externí odkaz:
http://www.theses.fr/2016SACLO013/document
Publikováno v:
Physical Review A, American Physical Society, 2018, 98, pp.043604
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. Within a linearized approximation, the system is described by independ
Externí odkaz:
http://arxiv.org/abs/1712.04642
Publikováno v:
Physical Review A, American Physical Society, 2017, 95, pp.043641
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 evolution of the system is calculated, conditioned by the loss sequence, namel
Externí odkaz:
http://arxiv.org/abs/1702.01020
Autor:
Nicklas, Eike, Karl, Markus, Höfer, Moritz, Johnson, Aisling, Muessel, Wolfgang, Strobel, Helmut, Tomkovič, Jiří, Gasenzer, Thomas, Oberthaler, Markus K.
Publikováno v:
Phys. Rev. Lett. 115, 245301 (2015)
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-component Bose gas with coherent exchange between the constituents, all
Externí odkaz:
http://arxiv.org/abs/1509.02173