Results 61 to 70 of about 1,210,902 (300)
Light storage and control of photon-photon interactions in a cold Rydberg gas [PDF]
, 2013 The effect of strong interatomic interactions on an optical field stored in Rydberg states of a cold atomic gas is investigated. Due to their large dipole moments Rydberg atoms interact very strongly with each other.
MAXWELL, DANIEL,THOMAS
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Mechanisms for Lasing with Cold Atoms as the Gain Medium [PDF]
, 2008 International audienceWe realize a laser with a cloud of cold rubidium atoms as gain medium, placed in a low-finesse cavity. Three different regimes of laser emission are observed corresponding respectively to Mollow, Raman and Four Wave Mixing ...
Kaiser, Robin +2 more
core +1 more source
Cold neutral atoms via charge exchange from excited state positronium: a proposal
New Journal of Physics, 2017 We present a method for generating cold neutral atoms via charge exchange reactions between trapped ions and Rydberg positronium. The high charge exchange reaction cross section leads to efficient neutralisation of the ions and since the positronium-ion ...
W A Bertsche, M Charlton, S Eriksson
doaj +1 more source
Stückelberg-interferometry with ultra-cold atoms [PDF]
The European Physical Journal D, 2011 We show that and how ultra-cold atoms in an accelerated two-band lattice are a controlled realization of Landau--Zener--Stückelberg interferometry.
Plötz P., WIMBERGER, Sandro Marcel
openaire +3 more sources
Advanced Engineering Materials, EarlyView.A unified research data management framework for heterogeneous materials data is presented. The system integrates multimodal datasets using ontologies and knowledge graphs, enabling interoperability and FAIR (findable, accessible, interoperable, reusable) data principles. By linking data across scales and workflows, it supports reproducible, Artifitial
Doaa Mohamed +6 more
wiley +1 more source
Manipulation of ultracold atoms using magnetic and optical fields [PDF]
, 2006 The loading and guiding of a launched cloud of cold atoms with the optical dipole force are theoretically and numerically modelled. A far-off resonance trap can be realised using a high power Gaussian mode laser, red-detuned with respect to the principal
Pritchard, Matthew J. +1 more
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Long-range versus short-range effects in cold molecular ion-neutral collisions
Nature Communications, 2019 Studies on reactions between cold molecular ions and neutral atoms provide insights into intermolecular interactions. Here the authors explore the kinetics and dynamics of charge-transfer collisions between the cold N$${}_{2}^{+}$$ 2+ and O$${}_{2}^{+}$$
Alexander D. Dörfler +5 more
doaj +1 more source
Quasiperiodically Driven Ratchets for Cold Atoms [PDF]
Physical Review Letters, 2006 We investigate experimentally the route to quasiperiodicity in a driven ratchet for cold atoms, and examine the relationship between symmetries and transport while approaching the quasiperiodic limit. Depending on the specific form of driving, quasiperiodicity results in the complete suppression of transport, or into the restoration of the symmetries ...
Gommers, R, Denisov, S, Renzoni, F
openaire +7 more sources
Current Status and Challenges in Data Collection for Aerospace Coatings Deposited by Plasma Spraying
Advanced Engineering Materials, EarlyView.An innovative approach has been integrated into the GRENAT project to optimize plasma spraying and coating performance. Raw materials are accelerated and melted in the plasma generated by torches, creating coatings. Monitoring sensors collect process data which are combined with ex situ characterization data.
Lila Randriamananjara +8 more
wiley +1 more source
Towards sympathetic cooling of large molecules: Cold collisions between benzene and rare gas atoms [PDF]
, 2009 This paper reports on calculations of collisional cross sections for the complexes Z-CDH6 (X = 3He, 4He, Ne) at temperatures in the range 1)μK - 10K and shows that relatively large cross sections in the 103-105Å2 range are available for collisional ...
P Barletta +5 more
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