Articles with "alkali atoms" as a keyword



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Hydrated Alkali Atoms on Copper(111): A Density Functional Theory Study

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Published in 2021 at "Journal of Physical Chemistry C"

DOI: 10.1021/acs.jpcc.0c10061

Abstract: We present a systematic computational study of submonolayer coverage of alkali atoms (Na, K, Cs) on Cu(111) surface hydrated from 1 to 6 water molecules. Our calculations show that water molecules ... read more here.

Keywords: atoms copper; study; hydrated alkali; alkali atoms ... See more keywords
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Selective excitation of spin-polarized alkali atoms in different ground-state hyperfine levels

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Published in 2017 at "Scientific Reports"

DOI: 10.1038/s41598-017-14431-8

Abstract: A technique to selectively excite spin-polarized alkali atoms in one of the two ground-state hyperfine levels is demonstrated, which can separately create the transverse spin component of spin-polarized alkali atoms in either ground-state hyperfine level.… read more here.

Keywords: state hyperfine; ground state; spin; alkali atoms ... See more keywords
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Intrinsic transverse relaxation mechanisms of polarized alkali atoms enclosed in radio-frequency magnetometer cell

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Published in 2019 at "Chinese Physics B"

DOI: 10.1088/1674-1056/ab3442

Abstract: The intrinsic transverse relaxation mechanisms of polarized alkali atoms enclosed in the radio-frequency magnetometer cell are investigated. The intrinsic transverse relaxation rate of cesium atoms as a function of cell temperature is obtained. The absorption… read more here.

Keywords: intrinsic transverse; relaxation; transverse relaxation; cell ... See more keywords
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Quantum Noise Correlations of an Optical Parametric Oscillator Based on a Nondegenerate Four Wave Mixing Process in Hot Alkali Atoms.

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Published in 2020 at "Physical review letters"

DOI: 10.1103/physrevlett.125.083601

Abstract: We present the first measurement of two-mode squeezing between the twin beams produced by a doubly resonant optical parameter oscillator (OPO) in an above threshold operation based on parametric amplification by nondegenerate four wave mixing… read more here.

Keywords: oscillator; wave mixing; nondegenerate four; four wave ... See more keywords
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Continuous Variable Entanglement in an Optical Parametric Oscillator Based on a Nondegenerate Four Wave Mixing Process in Hot Alkali Atoms.

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Published in 2022 at "Physical review letters"

DOI: 10.1103/physrevlett.129.163601

Abstract: We present the measurement of entanglement between twin beams generated with a doubly resonant optical parameter oscillator (OPO) based on four-wave mixing in hot ^{85}Rb vapor above threshold. This is the first measurement of entanglement… read more here.

Keywords: oscillator; wave mixing; generation; four wave ... See more keywords
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A Fully Relativistic Approach to Photon Scattering and Photoionization of Alkali Atoms

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Published in 2021 at "Atoms"

DOI: 10.3390/atoms9030042

Abstract: A fully relativistic approach to calculating photoionization and photon-atom scattering cross sections for quasi one-electron atoms is presented. An extensive set of photoionization cross sections have been calculated for alkali atoms: lithium, sodium, potassium, rubidium… read more here.

Keywords: photoionization; relativistic approach; fully relativistic; photon ... See more keywords