74 citations · 418 across the 11 of their papers we have counts for
8 papers
Exponential acceleration of macroscopic quantum tunneling in a Floquet Ising model
George Grattan, Brandon A. Barton, Sean Feeney +6
The exponential suppression of macroscopic quantum tunneling (MQT) in the number of elements to be reconfigured is an essential element of broken symmetry phases. This suppression…
Orbital Josephson effect and interactions in driven atom condensates on a ring
M. Heimsoth, C. E. Creffield, L. D. Carr +1
In a system of ac-driven condensed bosons we study a new type of Josephson effect occurring between states sharing the same region of space and the same internal atom structure. We…
Hartree-Fock-Bogoliubov Model and Simulation of Attractive and Repulsive Bose-Einstein Condensates
V. D. Snyder, S. J. J. M. F. Kokkelmans, L. D. Carr
We describe a model of dynamic Bose-Einstein condensates near a Feshbach resonance that is computationally feasible under assumptions of spherical or cylindrical symmetry. Simulati…
Radially Symmetric Nonlinear States of Harmonically Trapped Bose-Einstein Condensates
G. Herring, L. D. Carr, R. Carretero-Gonzalez +2
Starting from the spectrum of the radially symmetric quantum harmonic oscillator in two dimensions, we create a large set of nonlinear solutions. The relevant three principal branc…
Macroscopic quantum tunnelling of Bose-Einstein condensates in a finite potential well
L. D. Carr, M. J. Holland, B. A. Malomed
Bose-Einstein condensates are studied in a potential of finite depth which supports both bound and quasi-bound states. This potential, which is harmonic for small radii and decays…
Nonlinear Band Structure in Bose Einstein Condensates: The Nonlinear Schrödinger Equation with a Kronig-Penney Potential
B. T. Seaman, L. D. Carr, M. J. Holland
All Bloch states of the mean field of a Bose-Einstein condensate in the presence of a one dimensional lattice of impurities are presented in closed analytic form. The band structur…