Results 81 to 90 of about 113,215 (162)

Emergence of Chaotic Scattering in Ultracold Er and Dy

Physical Review X, 2015
We show that for ultracold magnetic lanthanide atoms chaotic scattering emerges due to a combination of anisotropic interaction potentials and Zeeman coupling under an external magnetic field.
T. Maier, H. Kadau, M. Schmitt, M. Wenzel, I. Ferrier-Barbut, T. Pfau, A. Frisch, S. Baier, K. Aikawa, L. Chomaz, M. J. Mark, F. Ferlaino, C. Makrides, E. Tiesinga, A. Petrov, S. Kotochigova   +15 more
doaj   +1 more source

Positron-Hydrogen Scattering, Annihilation, and Positronium Formation

Atoms, 2016
In previous papers (Bhatia A.K. 2007, 2012) a hybrid theory for the scattering of electrons from a hydrogenic system was developed and applied to calculate scattering phase shifts, Feshbach resonances, and photoabsorption processes.
Anand K. Bhatia
doaj   +1 more source

Attosecond photoionization delays in the vicinity of molecular Feshbach resonances. [PDF]

Sci Adv, 2023
Borràs VJ, González-Vázquez J, Argenti L, Martín F.   +3 more
europepmc   +1 more source

Feshbach resonances in the F + CHD₃ → HF + CD₃ reaction. [PDF]

Chem Sci, 2023
Liu S, Chen J, Zhang X, Zhang DH.
europepmc   +1 more source

Feshbach resonances in cold atomic gases [PDF]

, 2006
The research described in this thesis is part of an international effort with the aim of studying ultracold quantum degenerate gas samples like Bose-Einstein condensates and Fermi degenerate systems, consisting of atoms confined in magnetic or optical ...
Kempen, van, E.G.M., Kempen, EGM Eric van   +1 more
core   +1 more source

Feshbach resonances in positron–hydrogen collisions

, 1996
Sequences of Feshbach resonances, predicted by theory to exist below the n = 2 H threshold in positron–hydrogen scattering, that have long evaded all previous numerical searches, were finally located in our close-coupling calculation employing various ...
T. T. Gien
core   +1 more source

Observation of Feshbach resonances between alkali and closed-shell atoms [PDF]

, 2018
Magnetic Feshbach resonances allow control of the interactions between ultracold atoms. They are an invaluable tool in studies of few-body and many-body physics, and can be used to convert pairs of atoms into molecules by ramping an applied magnetic ...
Żuchowski, P.S., Pasquiou, B., Florian Schreck, Ciamei, A., Hutson, J.M., Piotr S. Żuchowski, Żuchowski, P. S., Schreck, F., Hutson, J. M., Lukas Reichsöllner, Reichsöllner, L., Jeremy M. Hutson, Vincent Barbé, Benjamin Pasquiou, Barbé, V., Alessio Ciamei   +15 more
core   +1 more source

Feshbach resonances in He-3*-He-4* mixtures [PDF]

, 2010
We discuss the stability of homonuclear and heteronuclear mixtures of 3He and 4He atoms in the metastable 2 3S1 state (He*) and predict positions and widths of Feshbach resonances by using the asymptotic-bound-state model.
Goosen, MR Maikel, Goosen, M.R., Goossen, M.R., Kokkelmans, SJJMF Servaas, M. R. Goosen, Kokkelmans, S.J.J.M.F.; id_orcid, Tiecke, TG, W. Vassen, Vassen, W, Vassen, W., T. G. Tiecke, Tiecke, T.G., Kokkelmans, S.J.J.M.F., S. J. J. M. F. Kokkelmans   +13 more
core   +4 more sources

Fano-Feshbach resonances in two-channel scattering around exceptional points

, 2014
It is well-known that in open quantum systems resonances can coalesce at an exceptional point, where both the energies and the wave functions coincide.
Walter Dieter Heiss, Günter Wunner
core   +1 more source

Magnetically tunable Feshbach resonances in Li plus Yb 3PJ [PDF]

, 2013
We have investigated magnetically tunable Feshbach resonances arising from the interaction of Li(2S) with metastable Yb(3P2) and(3P0). ForYb(3P2), all the resonance features are strongly suppressed by inelastic collisions that produce Yb in its lower ...
González-Martínez, M.L., Hutson, J.M.
core   +1 more source