Results 31 to 40 of about 1,480,319 (221)
Atoms, 2021 The present paper revisits the determination of the semi-classical limit of the Feshbach resonances which play a role in electron impact broadening (the so-called “Stark“ broadening) of isolated spectral lines of ionized atoms. The Gailitis approximation
Sylvie Sahal-Bréchot
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Photonic Feshbach resonance [PDF]
Science China Physics, Mechanics and Astronomy, 2010 Hermann Feshbach predicted fifty years ago that when two atomic nuclei are scattered within an open entrance channel-- the state observable at infinity, they may enter an intermediate closed channel -- the locally bounded state of the nuclei. If the energy of a bound state of in the closed channel is fine-tuned to match the relative kinetic energy ...
Xu, D. Z. +4 more
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Efimov scenario for overlapping narrow Feshbach resonances [PDF]
Physical Review A, 2021 While Efimov physics in ultracold atoms is usually modeled with an isolated Feshbach resonance many real world resonances appear in close vicinity to each other and are therefore overlapping.
Y. Yudkin, L. Khaykovich
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Polaritonic Feshbach resonance [PDF]
Nature Physics, 2014 supplementary material included.
N. Takemura +4 more
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Observation of magnetic Feshbach resonances between Cs and ^{173}Yb
Physical Review Research, 2022 We report the observation of magnetic Feshbach resonances between ^{173}Yb and ^{133}Cs. In a mixture of Cs atoms prepared in the (f=3,m_{f}=3) state and unpolarized fermionic ^{173}Yb, we observe resonant atom loss due to two sets of magnetic Feshbach ...
Tobias Franzen +6 more
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Collective excitation of Bose–Einstein condensate of 23Na via high-partial wave Feshbach resonance
New Journal of Physics, 2023 We experimentally observe the collective excitation (called surface-mode excitation) of Bose–Einstein condensate of ^23 Na by ramping the external magnetic field across the high-partial wave magnetic Feshbach resonance corresponding to vary the atomic ...
Zhenlian Shi +7 more
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Journal of Chemical Theory and Computation, 2021 The advent of ultrashort XUV pulses is pushing for the development of accurate theoretical calculations to describe ionization of molecules in regions where electron correlation plays a significant role.
V. J. Borràs +3 more
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Polaritonic Cross Feshbach Resonance [PDF]
Physical Review Letters, 2019 We demonstrate the existence of a cross Feshbach resonance by strongly driving a lower polariton mode and by monitoring in time the transmission of a short optical pulse at the energy of the upper polariton mode in a semiconductor microcavity. From the signatures of the optical resonance, strength, and sign of the energy shift, we attribute the origin ...
M, Navadeh-Toupchi +4 more
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Physical Review Research, 2023 We consider the magnetically tunable Feshbach resonances that may exist in ultracold mixtures of molecules in ^{2}Σ states and alkali-metal atoms. We focus on Rb+CaF as a prototype system.
Robert C. Bird +2 more
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Observation of magnetically tunable Feshbach resonances in ultracold 23Na40K + 40K collisions [PDF]
Science, 2018 Brief get-togethers between NaK and K Cooling molecules to nanokelvin temperatures places them under the tightest quantum mechanical constraints. Studies in this intriguing regime have been limited to diatomics: Two cold atoms can be lured together into ...
Huan Yang +6 more
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