Results 31 to 40 of about 7,077 (196)

Ultracold chemistry with alkali-metal–rare-earth molecules

Physical Review A, 2015
A first principles study of the dynamics of $^6$Li($^{2}$S) + $^6$Li$^{174}$Yb($^2 ^+$)$ \to ^6$Li$_2(^1 ^+$) + $^{174}$Yb($^1$S) reaction is presented at cold and ultracold temperatures. The computations involve determination and analytic fitting of a three-dimensional potential energy surface for the Li$_2$Yb system and quantum dynamics ...
Makrides, C., Hazra, Jisha, Pradhan, G. B., Petrov, A., Kendrick, B. K., González-Lezana, T., Naduvalath, Balakrishnan, Kotochigova, S.   +7 more
openaire   +6 more sources

Effect of nuclear spin symmetry in cold and ultracold reactions: D + para/ortho-H2

New Journal of Physics, 2015
We report results for reaction and vibrational quenching of the collision D with para-H _2 ( $v,j=0$ ) and ortho-H _2 ( $v,j=1$ ) at cold and ultracold temperatures.
Ionel Simbotin, Robin Côté
doaj   +1 more source

Buffer gas cooling of ions in radio-frequency traps using ultracold atoms

New Journal of Physics, 2022
Reaching ultracold temperatures within hybrid atom–ion systems is a major limiting factor for control and exploration of the atom–ion interaction in the quantum regime.
E Trimby, H Hirzler, H Fürst, A Safavi-Naini, R Gerritsma, R S Lous   +5 more
doaj   +1 more source

Universality and chaoticity in ultracold K+KRb chemical reactions

Nature Communications, 2017
Studying chemical reactions near zero temperature in detail is challenging both in theory and practice. Here the authors report an explicit quantum mechanical study of the benchmark ultracold reaction between a K atom and a KRb molecule, important for ...
J. F. E. Croft, C. Makrides, M. Li, A. Petrov, B. K. Kendrick, N. Balakrishnan, S. Kotochigova   +6 more
doaj   +1 more source

Controlling the nature of a charged impurity in a bath of Feshbach dimers

Physical Review Research, 2020
We theoretically study the dynamics of a trapped ion that is immersed in an ultracold gas of weakly bound atomic dimers created by a Feshbach resonance.
Henrik Hirzler, Eleanor Trimby, Rianne S. Lous, Gerrit C. Groenenboom, Rene Gerritsma, Jesús Pérez-Ríos   +5 more
doaj   +1 more source

Core repulsion effects in alkali trimers

, 2009
The present paper is related to a talk presented during the Symposium on Coherent Control and Ultracold Chemistry held during the Sixth Congress of the International Society for Theoretical Chemical Physics (ISTCP-VI, July 2008).
Aymar, Aymar, Aymar, Baranov, Barnett, Bartenstein, Bethlem, Bloch, Bourdel, Boys, Chin, Chin, Chin, Cho, Coker, Colavecchia, Cvitaš, Cvitaš, Cvitaš, Danzl, Deiglmayr, Deiglmayr, DeMille, DeMille, DeMille, Donley, Durand, Durand, Foucrault, Gerlich, Gilijamse, Gorál, Greiner, Hampel, Herbig, Higgins, Hinds, Hudson, Hudson, Hudson, Huron, Hutson, Hutson, Iron, Jaksch, Jeung, Jochim, Jones, Karr, Kawall, Kotochigova, Kozlov, Krems, Köhler, Lang, Li, Li, Li, Magnier, Magnier, Mark, Metz, Müller, Ni, Pavolini, Quéméner, Quéméner, Quéméner, Rabl, Rabl, Ravaine, Regal, Schiller, Simoni, Soldán, Soldán, Soldán, Spiegelmann, Staanum, Stwalley, van de Meerakker, van Veldhoven, Viteau, Xie, Zahzam, Zelevinsky, Zwierlein, Zwierlein, Čížek   +88 more
core   +2 more sources

Few-Body Analog Quantum Simulation with Rydberg-Dressed Atoms in Optical Lattices

PRX Quantum, 2023
Most experiments with ultracold atoms in optical lattices have contact interactions and therefore operate at high densities of around one atom per site to observe the effect of strong interactions.
Daniel Malz, J. Ignacio Cirac
doaj   +1 more source

Single atom in a superoscillatory optical trap

Communications Physics, 2023
Optical tweezers have become essential tools to manipulate atoms or molecules at a single particle level. However, using standard diffraction-limited optical systems, the transverse size of the trap is lower bounded by the optical wavelength, limiting ...
Hamim Mahmud Rivy, Syed A. Aljunid, Emmanuel Lassalle, Nikolay I. Zheludev, David Wilkowski   +4 more
doaj   +1 more source

Fluorenyl Cations: Synthesis and Reactivity. [PDF]

Chemistry
This review covers the history of fluorenyl cations from Deno's first report in 1954 on the parent fluorenyl cation to the present. The parent cation and most derivatives have only been observed as a fleeting species by mass spectrometry, UV/Vis spectroscopy, IR spectroscopy, or NMR spectroscopy while recent developments led to isolable species ...
Vashisth K, Ranasinghe S, Begum A, Akram MO, Dutton JL, Martin CD.   +5 more
europepmc   +2 more sources

Progress toward ultracold chemistry: ultracold atomic and photonic collisions

Journal of Physics: Conference Series, 2014
The dynamics of ultracold quantum gases composed of atoms or molecules with extremely low translational energy Et/kB
Jesús Pérez-Ríos, Maxence Lepers, Romain Vexiau, Nadia Bouloufa-Maafa, Olivier Dulieu   +4 more
openaire   +1 more source