Results 21 to 30 of about 11,049,624 (308)
Active-quadrupole interaction of Bessel beams and their influence on atoms
Journal of Taibah University for Science, 2020 This paper explains how the optical quadrupole interaction between a two-level neutral atom and two counter-propagating non-diffracting Bessel beams can exhibit interesting rotational characteristics.
S. Al-Awfi
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Antioxidants, 2021 Spices have long been used to improve food flavor, due to their appealing fragrance and sensory attributes. Nowadays, spices-based bioactives, particularly phenolic compounds, have gained attention due to their wide range of significant effects in ...
Akhtar Ali +5 more
semanticscholar +1 more source
Известия высших учебных заведений: Проблемы энергетики, 2022 THE PURPOSE. Study the possibility of using a laboratory nuclear magnetic resonance console as a device for detecting counterfeit medicines. The problem of detecting counterfeit and counterfeit medicines is now very acute.
R. R. Khusnutdinov
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The electric quadrupole moment of molecular hydrogen ions and their potential for a molecular ion clock [PDF]
, 2013 The systematic shifts of the transition frequencies in the molecular hydrogen ions are of relevance to ultra-high-resolution radio-frequency, microwave and optical spectroscopy of these systems, performed in ion traps.
D. Bakalov, S. Schiller
semanticscholar +1 more source
On the feasibility of cooling and trapping metastable alkaline-earth atoms [PDF]
, 2001 Metastability and long-range interactions of Mg, Ca, and Sr in the lowest-energy metastable $^3P_2$ state are investigated. The calculated lifetimes are 38 minutes for Mg*, 118 minutes for Ca*, and 17 minutes for Sr*, supporting feasibility of cooling ...
A. Dalgarno +16 more
core +2 more sources
Chaos in periodically perturbed monopole + quadrupole-like potentials
Physics Letters A, 1998 The motion of a particle that suffers the influence of simple inner (outer) periodic perturbations when it evolves around a center of attraction modeled by an inverse square law plus a quadrupole-like term is studied. The equations of motion are used to reduce the Melnikov method to the study of simple graphics.
Letelier, P. S., Vieira, W. M.
openaire +2 more sources
CMB quadrupole suppression: II. The early fast roll stage [PDF]
, 2006 Within the effective field theory of inflation, an initialization of the classical dynamics of the inflaton with approximate equipartition between the kinetic and potential energy of the inflaton leads to a brief fast roll stage that precedes the slow ...
A. R. Liddle +21 more
core +4 more sources
Potential signature of a quadrupolar Hubble expansion in Pantheon+ supernovae [PDF]
Monthly notices of the Royal Astronomical Society, 2022 The assumption of isotropy —that the Universe looks the same in all directions on large scales— is fundamental to the standard cosmological model. It is therefore critical to empirically test in which regimes this assumption holds.
Jessica A Cowell +2 more
semanticscholar +1 more source
Modification of the Stability Regions in Stretched Paul Ion Trap by Damping Force [PDF]
مجله علوم و فنون هستهای, 2017 With the change of an ion trap geometrical shape, ring and end-cap electrodes, and also damping force effects, the first and second stability regions are studied in a stretched Paul ion trap.
I Ziaeian +3 more
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3D-Printable Model of a Particle Trap: Development and Use in the Physics Classroom
Journal of Open Hardware, 2019 Quadrupole ion traps are modern and versatile research tools used in mass spectrometers, in atomic frequency and time standards, in trapped ion quantum computing research, and for trapping anti-hydrogen ions at CERN.
Lachlan McGinness +7 more
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