Results 31 to 40 of about 110,226 (291)
Applied Sciences, 2020 An optical tweezer composed of a strongly focused single-spatial-mode Gaussian beam of a red-detuned 1064-nm laser can confine a single-cesium (Cs) atom at the strongest point of the light intensity.
Rui Sun +4 more
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Some Properties of Motion of Atoms near a Charged Wire
Mathematics, 2023 We are concerned with the classical approach to atomic motions in the vicinity of a wire charged by an oscillating voltage. This mechanism has been proposed to serve for trapping cold neutral atoms.
Božena Dorociaková +3 more
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Trapped-atom interferometer with ultracold Sr atoms [PDF]
Physical Review A, 2016 9 pages, 8 figures, Accepted for publication in Phys.
ZHANG, XIAN +4 more
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Atom Interferometry with Trapped Fermi Gases [PDF]
Physical Review Letters, 2004 We realize an interferometer with an atomic Fermi gas trapped in an optical lattice under the influence of gravity. The single-particle interference between the eigenstates of the lattice results in macroscopic Bloch oscillations of the sample. The absence of interactions between fermions allows a time-resolved study of many periods of the oscillations,
G. ROATI +5 more
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Cooling Trapped Atoms in Optical Resonators [PDF]
Physical Review Letters, 2005 We derive an equation for the cooling dynamics of the quantum motion of an atom trapped by an external potential inside an optical resonator. This equation has broad validity and allows us to identify novel regimes where the motion can be efficiently cooled to the potential ground state.
Zippilli, Stefano, Morigi, Giovanna
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ac electric trapping of neutral atoms [PDF]
Physical Review A, 2008 We study the dynamic behavior of ultracold neutral atoms in a macroscopic ac electric trap. Confinement in such a trap is achieved by switching between two saddle-point configurations of the electric field. The gradual formation of a stably trapped cloud is observed and the trap performance is studied versus the switching frequency and the symmetry of ...
Schlunk, S. +4 more
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Economical Alternatives for High Sensitivity in Atomic Spectrometry Laboratory [PDF]
Pakistan Journal of Analytical & Environmental Chemistry, 2007 The most commonly used analytical tools for determination of elements at trace levels are atomic absorption spectrometry (AAS), inductively coupled plasma, optical emission and mass spectrometry (ICP-OES and ICP-MS) and atomic fluorescence spectrometry ...
O. Yavuz Ataman
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Hydrogen atom trapping in a self-organized one-dimensional dimer
APL Materials, 2014 Metal–organic frameworks (MOFs) have attracted widespread attention owing to their unusual structure and properties produced by their nanospaces. However, many MOFs possess the similar three-dimensional frameworks, limiting their structural variety and ...
Tsuyoshi Takami, Kazushi Kawamura
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Ring trap for ultracold atoms [PDF]
Physical Review A, 2006 We propose a new kind of toroidal trap, designed for ultracold atoms. It relies on a combination of a magnetic trap for rf-dressed atoms, which creates a bubble-like trap, and a standing wave of light. This new trap is well suited for investigating questions of low dimensionality in a ring potential.
Morizot, Olivier +4 more
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Spatially truncated optical pumping cooling
New Journal of Physics, 2019 We present both the theoretical description and experimental implementation of a novel cooling technique for ultracold atoms trapped in a confining potential. We call the technique ‘spatially truncated optical pumping cooling.’ By using the fact that the
J Gilbert, R Ferrier Wilson, J Roberts
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