Results 161 to 170 of about 1,480,319 (221)

Analytical model of overlapping Feshbach resonances

, 2013
Feshbach resonances in ultracold collisions often result from an interplay between many collision channels. Simple two-channel models can be introduced to capture the basic features, but cannot fully reproduce the situation when several resonances from ...
Jachymski, Krzysztof, Julienne, Paul S.
core   +1 more source

Theory of dissociative electron attachment: Biomolecules and clusters

EPJ Web of Conferences, 2015
Very broad σ∗ resonances, which are responsible for threshold structures and dissociative attachment in electron collisions with hydrogen halides, are also important in electron-impact bond-breaking in nucleobases and amino acids.
Fabrikant Ilya I.
doaj   +1 more source

Coherent control of quantum collapse in a Bosonic Josephson junction by modulation of the scattering length

New Journal of Physics, 2013
By means of a temporal-periodic modulation of the s-wave scattering length, a procedure to control the evolution of an initial atomic coherent state associated with a bosonic Josephson junction is presented.
J Lozada-Vera, V S Bagnato, M C de Oliveira   +2 more
doaj   +1 more source

Extending the Kawai-Kerman-McVoy Statistical Theory of Nuclear Reactions to Intermediate Structure via Doorways

EPJ Web of Conferences, 2012
Kawai, Kerman, and McVoy have shown that a statistical treatment of many open channels that are coupled by direct reactions leads to modifications of the Hauser-Feshbach expression for energy-averaged cross section [Ann. of Phys. 75, 156 (1973)].
Roche K.J., Kerman A.K., Dean D.J., Bertulani C.A., Arbanas G.   +4 more
doaj   +1 more source

Universal coherent atom-molecule oscillations in the dynamics of the unitary Bose gas near a narrow Feshbach resonance

Physical Review Research
Quench experiments on a unitary Bose gas around a broad Feshbach resonance have led to the discovery of universal dynamics. This universality manifests in the measured atomic momentum distributions, where, asymptotically, a quasiequilibrated metastable ...
Ke Wang, Zhendong Zhang, Shu Nagata, Zhiqiang Wang, K. Levin   +4 more
doaj   +1 more source

Observation of high partial-wave Feshbach resonances in 39K Bose–Einstein condensates

New Journal of Physics
We report the new observation of several high partial-wave (HPW) magnetic Feshbach resonances (FRs) in ^39 K atoms of the hyperfine substate $\left|F = 1,m_{F} = -1\right\rangle$ .
Yue Zhang, Liangchao Chen, Zekui Wang, Yazhou Wang, Pengjun Wang, Lianghui Huang, Zengming Meng, Ran Qi, Jing Zhang   +8 more
doaj   +1 more source

Universal Quantum Dynamics of Bose Polarons

Physical Review X
Predicting the emergent properties of impurities immersed in a quantum bath is a fundamental challenge that can defy quasiparticle treatments. Here, we measure the spectral properties and real-time dynamics of mobile impurities injected into a weakly ...
Jiří Etrych, Gevorg Martirosyan, Alec Cao, Christopher J. Ho, Zoran Hadzibabic, Christoph Eigen   +5 more
doaj   +1 more source

Feshbach resonances in 40K

, 2012
De wisselwerking tussen deeltjes bepaalt de eigenschappen van alle materie. Als het mogelijk is de wisselwerking in te stellen, kunnen deze eigenschappen worden veranderd. Er is een mechanisme bekend om de wisselwerking tussen sommige atoomsoorten te veranderen: de zogeheten Feshbach-resonanties.
openaire   +1 more source

Cryogenic Photodetachment Spectroscopy and High-Resolution Resonant Photoelectron Imaging of Cold <i>para</i>-Ethylphenolate Anions. [PDF]

Precis Chem, 2023
Yuan DF, Zhang YR, Qian CH, Zhu GZ, Wang LS.   +4 more
europepmc   +1 more source

Feshbach Resonances in Cold Collisions: Benchmarking State-of-the-Art Ab Initio Potential Energy Surfaces. [PDF]

J Phys Chem Lett
Horn KP, Upadhyay M, Margulis B, Reich DM, Narevicius E, Meuwly M, Koch CP.   +6 more
europepmc   +1 more source