Results 11 to 20 of about 385,547 (172)

Schwinger pair production with ultracold atoms [PDF]

open access: yesPhysics Letters B, 2016
We consider a system of ultracold atoms in an optical lattice as a quantum simulator for electron–positron pair production in quantum electrodynamics (QED).
V. Kasper   +3 more
doaj   +3 more sources

Light-induced atomic desorption in a compact system for ultracold atoms. [PDF]

open access: yesSci Rep, 2015
This work was supported by the UK EPSRC grant GR/T08272/01 and the Leverhulme Trust Research Project Grant RPG-2013-074. G.S. acknowledges support from a SUPA Advanced Fellowship.In recent years, light-induced atomic desorption (LIAD) of alkali atoms ...
Torralbo-Campo L   +3 more
europepmc   +2 more sources

Alternative techniques for the production and manipulation of ultracold atoms [PDF]

open access: yes, 2012
This Thesis contains details of the construction and characterisation of a compact apparatus for the cooling of ultracold atoms to quantum degeneracy, and their manipulation in flexible holographic optical traps. We have designed and built two iterations
Bruce, Graham D.
core   +2 more sources

Optomechanical coupling between ultracold atoms and a membrane oscillator [PDF]

open access: yes, 2014
In this thesis, I report on the realization of a hybrid optomechanical system in which ultracold atoms are coupled to a micromechanical membrane. The atoms are trapped in the intensity maxima of an optical standing wave formed by retroreflection of a ...
Korppi, Maria
core   +1 more source

Phase-engineered light patterns for ultracold atom experiments [PDF]

open access: yes, 2015
We present advances in the use of Spatial Light Modulators for the manipulation of ultracold neutral atoms, by increasing the control over hologram calculation and the accuracy of experimental light patterns, and demonstrate multi-wavelength ...
Bruce, Graham David   +5 more
core   +2 more sources

Iterative precision measurement of branching ratios applied to 5P states in 88Sr+

open access: yesNew Journal of Physics, 2016
We report and demonstrate a method for measuring the branching ratios of dipole transitions of trapped atomic ions by performing nested sequences of population inversions.
Helena Zhang   +6 more
doaj   +1 more source

Collisional relaxation of vibrational states of SrOH with He at 2 K

open access: yesNew Journal of Physics, 2015
Vibrational relaxation of strontium monohydroxide (SrOH) molecules in collisions with helium (He) at 2 K is studied. We find the diffusion cross section of SrOH at 2.2 K to be ${{\sigma }_{{\rm d}}}=(5\pm 2)\times {{10}^{-14}}\;{\rm c}{{{\rm m}}^{2 ...
Ivan Kozyryev   +5 more
doaj   +1 more source

One-dimensional array of ion chains coupled to an optical cavity

open access: yesNew Journal of Physics, 2013
We present a novel system where an optical cavity is integrated with a microfabricated planar-electrode ion trap. The trap electrodes produce a tunable periodic potential allowing the trapping of up to 50 separate ion chains aligned with the cavity and ...
Marko Cetina   +9 more
doaj   +1 more source

Emulation of magneto-optic Faraday effect using ultracold atoms

open access: yesNew Journal of Physics, 2021
We propose an arresting scheme for emulating the famous Faraday effect in ultracold atomic gases. Inspired by the similarities between the light field and bosonic atoms, we represent the light propagation in medium by the atomic transport in accompany of
Zhen Zheng, Z D Wang
doaj   +1 more source

Buffer gas loaded magneto-optical traps for Yb, Tm, Er and Ho

open access: yesNew Journal of Physics, 2014
Direct loading of lanthanide atoms into magneto-optical traps (MOTs) from a very slow cryogenic buffer gas beam source is achieved, without the need for laser slowing. The beam source has an average forward velocity of 60– $70\;{\rm m}\;{{{\rm s}}^{-1}}$
Boerge Hemmerling   +4 more
doaj   +1 more source

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