Results 21 to 30 of about 949,044 (283)

Precise Determination of Magnetic Gradient Relaxation of Coupled Atomic Spin Ensemble in Spin-Exchange Relaxation-Free Co-Magnetometer

open access: yesPhotonics, 2023
Inside a spin-exchange relaxation-free (SERF) co-magnetometer with a high-pressure buffer gas atomic cell, the magnetic field gradient causes the decoherence of atomic spins to produce magnetic-field gradient relaxation.
Xiujie Fang   +7 more
doaj   +1 more source

Purcell-enhanced dipolar interactions in nanostructures

open access: yesPhysical Review Research, 2022
Strong light-induced interactions between atoms are known to cause nonlinearities at a few-photon level, which are crucial for applications in quantum information processing.
A. Skljarow   +5 more
doaj   +1 more source

Free-atom-like d states in single-atom alloy catalysts [PDF]

open access: yesNature Chemistry, 2018
Alloying provides a means by which to tune a metal catalyst's electronic structure and thus tailor its performance; however, mean-field behaviour in metals imposes limits. To access unprecedented catalytic behaviour, materials must exhibit emergent properties that are not simply interpolations of the constituent components' properties.
M. T. Greiner   +9 more
openaire   +5 more sources

Quantum optics with Rydberg superatoms

open access: yesJournal of Physics Communications, 2023
Quantum optics based on highly excited atoms, also known as Rydberg atoms, has cemented itself as a powerful platform for the manipulation of light at the few-photon level.
Jan Kumlin   +5 more
doaj   +1 more source

Theory of cooling by flow through narrow pores [PDF]

open access: yes, 2006
We consider the possibility of adding a stage to a dilution refrigerator to provide additional cooling by ``filtering out'' hot atoms. Three methods are considered: 1) Effusion, where holes having diameters larger than a mean-free path allow atoms to ...
J. M. Ziman   +3 more
core   +3 more sources

An atom-by-atom assembler of defect-free arbitrary two-dimensional atomic arrays [PDF]

open access: yesScience, 2016
Making perfect atomic arrays Arrays of atoms can be a useful resource for quantum information. However, loading atoms into arrays is typically a stochastic process, which leads to imperfections. Two groups have now performed defect-free assembly of atoms into arrays (see the Perspective by Regal). The researchers first loaded the
Barredo, Daniel   +4 more
openaire   +3 more sources

Drift-free tracking via the construction of an effective dictionary

open access: yesInternational Journal of Advanced Robotic Systems, 2020
Template dictionary construction is an important issue in sparse representation (SP)-based tracking algorithms. In this article, a drift-free visual tracking algorithm is proposed via the construction of an effective template dictionary.
Li Zhao   +4 more
doaj   +1 more source

Interaction-free measurements by quantum Zeno stabilisation of ultracold atoms [PDF]

open access: yes, 2015
Quantum mechanics predicts that our physical reality is influenced by events that can potentially happen but factually do not occur. Interaction-free measurements (IFMs) exploit this counterintuitive influence to detect the presence of an object without ...
Arlt, J.   +8 more
core   +3 more sources

Carrier-free Raman manipulation of trapped neutral atoms

open access: yesNew Journal of Physics, 2014
We experimentally realize an enhanced Raman control scheme for neutral atoms that features an intrinsic suppression of the two-photon carrier transition, but retains the sidebands which couple to the external degrees of freedom of the trapped atoms. This
René Reimann   +6 more
doaj   +1 more source

Relationship structure-antioxidant activity of hindered phenolic compounds

open access: yesGrasas y Aceites, 2014
The relationship between the structure and the antioxidant activity of 21 hindered phenolic compounds was investigated by Rancimat and DPPH· tests. 3-tert-butyl-5-methylbenzene-1,2-diol is the strongest antioxidant in the Rancimat test but not in the ...
X. C. Weng, Y. Huang
doaj   +1 more source

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