Results 71 to 80 of about 76,720 (314)
Detection of spin coherence in cold atoms via Faraday rotation fluctuations
Physical Review Research, 2021 We report noninvasive detection of spin coherence in a collection of Raman-driven cold atoms using dispersive Faraday rotation fluctuation measurements, which opens possibilities of probing spin correlations in quantum gases and other similar systems. We
Maheswar Swar +4 more
doaj +1 more source
Design of microcavity resonators for single-atom detection [PDF]
, 2007 Whispering gallery modes of a microdisk resonator are useful for the optical detection of single rubidium and cesium atoms near the surface of a substrate. Light is coupled into two high-Q whispering-gallery modes of the disk which can provide attractive
Rosenblit, Michael +4 more
core +1 more source
An on-chip cold-atom gravimeter [PDF]
Science, 2016 Metrology Gravimeters sense tiny changes in the local gravitational field and are used in geological studies, mineral exploration, and civil engineering to detect underground voids. Typically the size and weight of a small microwave oven, their operation is mechanical: A test mass pulls on a sensitive spring, and any difference in extension is compared
openaire +2 more sources
Cold Heteronuclear Atom-Ion Collisions [PDF]
Physical Review Letters, 2010 We study cold heteronuclear atom ion collisions by immersing a trapped single ion into an ultracold atomic cloud. Using ultracold atoms as reaction targets, our measurement is sensitive to elastic collisions with extremely small energy transfer. The observed energy-dependent elastic atom-ion scattering rate deviates significantly from the prediction of
Zipkes C +4 more
openaire +5 more sources
Oxide‐Free Titanium Coatings by Wire Arc Spraying in a Silane‐Doped Inert Atmosphere
Advanced Engineering Materials, EarlyView.A silane‐doped argon atmosphere enables the production of oxide‐free titanium coatings via twin‐wire arc spraying at ambient pressure. This innovative approach eliminates residual oxygen, creating process conditions that prevent oxidation and nitride formation.
Manuel Rodriguez Diaz +4 more
wiley +1 more source
Reservoir engineering of Cooper-pair-assisted transport with cold atoms
New Journal of Physics, 2019 We show how Cooper-pair-assisted transport, which describes the stimulated transport of electrons in the presence of Cooper-pairs, can be engineered and controlled with cold atoms, in regimes that are difficult to access for condensed matter systems. Our
François Damanet +3 more
doaj +1 more source
Photonic integrated beam delivery for a rubidium 3D magneto-optical trap
Nature Communications, 2023 Cold atoms are important for precision atomic applications including timekeeping and sensing. The 3D magneto-optical trap (3D-MOT), used to produce cold atoms, will benefit from photonic integration to improve reliability and reduce size, weight, and ...
Andrei Isichenko +5 more
doaj +1 more source
Coherent excitation of ultracold atoms between ground and Rydberg states [PDF]
, 2011 This thesis describes the development of an experiment to study coherent population transfer between ground states, and between ground and Rydberg states, in ultracold atoms.
Abel, Richard Philip +1 more
core
Advanced Engineering Materials, EarlyView.Trace additions of Sn and Sr combined with a two‐step aging treatment are shown to enhance the microstructure and performance of Al–Zr–Sc conductor alloys. Strength and electrical conductivity increase concurrently through accelerated precipitation of fine Al3(Sc, Zr) precipitates and improved dislocation resistance, offering a cost‐effective pathway ...
Quan Shao +3 more
wiley +1 more source
Nature Communications, 2019 The coherent dynamics of coupled atoms that interact with a common mode is different from that of independent atoms. Here the authors demonstrate the delocalization of excited states of atoms and photons using two ensembles of cold Cs atoms in cavities ...
Shinya Kato +6 more
doaj +1 more source