Results 61 to 70 of about 326,486 (291)

Quantum Machine Using Cold Atoms [PDF]

open access: yesJournal of Computational and Theoretical Nanoscience, 2010
simplified notations, extended figure captions; 16 pages, 6 ...
Ponomarev, A.V.   +2 more
openaire   +3 more sources

Synthesis of a Novel Thermoresponsive S53P4 Bioactive Glass Extract–Poloxamer 407 Injectable Hydrogels: Assessment of Biocompatibility and Antimicrobial Properties

open access: yesAdvanced Engineering Materials, EarlyView.
This study investigates innovative thermoreversible hydrogels derived from S53P4 bioactive glass extracts to aid in the healing of infected diabetic foot wounds. These injectable gels, which gel at body temperature, release beneficial ions and remain stable over time.
Marian G. Vargas Guerrero   +9 more
wiley   +1 more source

Cold neutral atoms via charge exchange from excited state positronium: a proposal

open access: yesNew 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

Detection of spin coherence in cold atoms via Faraday rotation fluctuations

open access: yesPhysical 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

Lattice Interferometer for Ultra-Cold Atoms

open access: yes, 2008
We demonstrate an atomic interferometer based on ultra-cold atoms released from an optical lattice. This technique yields a large improvement in signal to noise over a related interferometer previously demonstrated.
M. G. Raizen   +2 more
core   +1 more source

Investigation of Laser Ablation and Brush Pre‐Treatments for AlCu Cold Roll Bonding in Oxygen‐Free Conditions

open access: yesAdvanced Engineering Materials, EarlyView.
It is shown that laser ablation pretreatment under oxygen‐free conditions enables copper–aluminium bonding at significantly lower deformation degrees and improved properties compared to mechanical brushing. Laser ablation further increases interface contact area and induces favourable residual stress states and microstructural compatibility ...
Khemais Barienti   +11 more
wiley   +1 more source

Long-range versus short-range effects in cold molecular ion-neutral collisions

open access: yesNature 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

Photonic integrated beam delivery for a rubidium 3D magneto-optical trap

open access: yesNature 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

Single shot imaging of trapped Fermi gas

open access: yes, 2016
Recently developed techniques allow for simultaneous measurements of the positions of all ultra cold atoms in a trap with high resolution. Each such single shot experiment detects one element of the quantum ensemble formed by the cloud of atoms. Repeated
Gajda, Mariusz   +3 more
core   +1 more source

Reduction of Oxide Inclusions During the High‐Frequency Welding of Steel via a Nonthermal Ar/H2 Plasma Jet

open access: yesAdvanced Engineering Materials, EarlyView.
High‐frequency (HF) welding of steel is limited by oxide inclusions that degrade weld quality. This study demonstrates, for the first time, the integration of a nonthermal Ar/H2 dielectric barrier discharge (DBD) plasma jet into HF welding. Local plasma treatment provides effective shielding and in‐situ oxide reduction, resulting in markedly fewer and ...
Viktor Udachin   +4 more
wiley   +1 more source

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