Results 31 to 40 of about 192,299 (340)

Evanescent-wave trapping and evaporative cooling of an atomic gas near two-dimensionality [PDF]

, 2002
A dense gas of cesium atoms at the crossover to two-dimensionality is prepared in a highly anisotropic surface trap that is realized with two evanescent light waves.
A. Kerman, B. Engeser, D. Guéry-Odelin, D. Rychtarik, H. Mabuchi, H.-C. Nägerl, I. Bouchoule, J. T. M. Walraven, M. Hammes, M. Hammes, P. Domokos, R. Grimm, S. Friebel, W. Ketterle, Y. Colombe, Y. Kagan   +15 more
core   +2 more sources

Photon-Assisted Confinement-Induced Resonances for Ultracold Atoms [PDF]

Physical Review Letters, 2014
We solve the two-particle s-wave scattering for an ultracold atom gas confined in a quasi-one-dimensional trapping potential which is periodically modulated. The interaction between the atoms is included in terms of Fermi's pseudopotential. For a modulated isotropic transverse harmonic confinement, the atomic center of mass and relative degrees of ...
Leyton, V., Roghani, M., Peano, V., Thorwart, M.   +3 more
openaire   +4 more sources

Pure Mott Phases in Confined Ultracold Atomic Systems [PDF]

Physical Review Letters, 2010
4 Pages, 6 ...
Rousseau, V.G., Batrouni, G.G., Sheehy, D.E., Moreno, J., Jarrell, M.   +4 more
openaire   +3 more sources

Trapping and manipulating neutral atoms with electrostatic fields [PDF]

, 2003
We report on experiments with cold thermal $^7$Li atoms confined in combined magnetic and electric potentials. A novel type of three-dimensional trap was formed by modulating a magnetic guide using electrostatic fields.
A. Haase, C. Henkel, I. Bar-Joseph, J. Denschlag, J. Schmiedmayer, K. Brugger, M. W. Klein, P. Krüger, R. Folman, R. Folman, S. Groth, S. Wildermuth, X. Luo   +12 more
core   +1 more source

Superfluidity versus Bloch Oscillations in Confined Atomic Gases [PDF]

Physical Review Letters, 2001
Physical Review ...
Büchler, H. P., Geshkenbein, V. B., Blatter, G.   +2 more
openaire   +3 more sources

Helium atom under pressure

EPJ Web of Conferences, 2016
Hard-sphere confinement is used to study helium atoms under pressure. The confined-helium Schrödinger equation is solved with a high accuracy by a Lagrange-mesh method.
Dohet-Eraly Jérémy, Baye Daniel
doaj   +1 more source

New approach to obtain the analytical expression of the energy functional in free or confined atoms

Results in Physics, 2019
A new approach to analytically generate the electronic energy functional expression for free or confined multi-electronic atoms via the Direct Variational Method (DVM) is presented. The electronic energy functional expression which is independent of both
A.D. Sañu-Ginarte, E.M. Guillén-Romero, L. Ferrer-Galindo, L.A. Ferrer-Moreno, Ri. Betancourt-Riera, R. Riera   +5 more
doaj   +1 more source

Spatially truncated optical pumping cooling

New Journal of Physics, 2019
We present both the theoretical description and experimental implementation of a novel cooling technique for ultracold atoms trapped in a confining potential. We call the technique ‘spatially truncated optical pumping cooling.’ By using the fact that the
J Gilbert, R Ferrier Wilson, J Roberts
doaj   +1 more source

Bright Source of Cold Ions for Surface-Electrode Traps [PDF]

, 2007
We produce large numbers of low-energy ions by photoionization of laser-cooled atoms inside a surface-electrode-based Paul trap. The isotope-selective trap loading rate of $4\times10^{5}$ Yb$^{+}$ ions/s exceeds that attained by photoionization (electron
Andrew Grier, B. DeMarco, D. Stick, Isaac Chuang, J. Chiaverini, Jonathan Campbell, Marko Cetina, N. Kjaergaard, P. Zoller, Vladan Vuletić   +9 more
core   +2 more sources

Imaging the dynamics of individual hydrogen atom intercalated between two graphene sheets

, 2017
The interlayer gallery between two adjacent sheets of van der Waals materials is expected to modify properties of atoms and molecules confined at the atomic interfaces.
Feng, Ji, He, Lin, Li, Si-Yu, Li, Xinqi, Wang, Wen-Xiao, Wei, Yi-Wen, Wu, Xiaosong   +6 more
core   +1 more source