Bulletin of the American Physical Society
APS March Meeting 2018
Volume 63, Number 1
Monday–Friday, March 5–9, 2018; Los Angeles, California
Session Y26: Interacting Quantum Gases
11:15 AM–1:51 PM,
Friday, March 9, 2018
LACC
Room: 404A
Sponsoring
Unit:
DAMOP
Chair: Christopher Hooley, University of St. Andrews
Abstract ID: BAPS.2018.MAR.Y26.13
Abstract: Y26.00013 : Trial Wave Functions for Ring-Trapped Ions and Neutral Atoms: Microscopic Description of the Quantum Space-Time Crystal*
1:39 PM–1:51 PM
Presenter:
Constantine Yannouleas
(School of Physics, Georgia Inst of Tech)
Authors:
Constantine Yannouleas
(School of Physics, Georgia Inst of Tech)
Uzi Landman
(School of Physics, Georgia Inst of Tech)
symmetries of the mean-field crystals. This yields a sequences of magic angular momenta Lm. For angular momenta away from the magic values, the trial functions vanish. Symmetry breaking beyond mean field is induced by superpositions of good-Lm stationary states.
Superposing a pair of adjacent Lm states leads to formation of special broken-symmetry states with QSTC behavior. The particle densities rotate around the ring, showing undamped and nondispersed periodic crystalline evolution in both space and time. The experimental synthesis of such QSTC wave packets is favored in the vicinity of ground-state energy crossings of the Aharonov-Bohm spectra accessed via an applied magnetic field. These results are illustrated for Coulomb-repelling fermionic ions and for a lump of contact-interaction attracting bosons; see PRA 96, 043610 (2017)
*Supported by AFOSR (Award FA9550-15-1-0519)
To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2018.MAR.Y26.13
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