127 citations · 364 across the 11 of their papers we have counts for
11 papers
Guiding-center dynamics of vortex dipoles in Bose-Einstein condensates
S. Middelkamp, P. J. Torres, P. G. Kevrekidis +5
A quantized vortex dipole is the simplest vortex molecule, comprising two counter-circulating vortex lines in a superfluid. Although vortex dipoles are endemic in two-dimensional s…
Emergence and Stability of Vortex Clusters in Bose-Einstein Condensates: a Bifurcation Approach near the Linear Limit
S. Middelkamp, P. G. Kevrekidis, D. J. Frantzeskakis +2
We study the existence and stability properties of clusters of alternating charge vortices in Bose-Einstein condensates. It is illustrated that such states emerge from cascades of…
Impact of anisotropy on vortex clusters and their dynamics
J. Stockhofe, S. Middelkamp, P. Schmelcher +1
We investigate the effects of anisotropy on the stability and dynamics of vortex cluster states which arise in Bose-Einstein condensates. Sufficiently strong anisotropies are shown…
Dynamics of Dark-Bright Solitons in Cigar-Shaped Bose-Einstein Condensates
S. Middelkamp, J. J. Chang, C. Hamner +6
We explore the stability and dynamics of dark-bright solitons in two-component elongated Bose-Einstein condensates by developing effective 1D vector equations as well as solving th…
Creating versatile atom traps by applying near resonant laser light in magnetic traps
S. Middelkamp, M. Mayle, I. Lesanovsky +1
We utilize the combination of two standard trapping techniques, a magnetic trap and an optical trap in a Raman setup, to propose a versatile and tunable trap for cold atoms. The cr…
Dark solitons in cigar-shaped Bose-Einstein condensates in double-well potentials
S. Middelkamp, G. Theocharis, P. G. Kevrekidis +2
We study the statics and dynamics of dark solitons in a cigar-shaped Bose-Einstein condensate confined in a double-well potential. Using a mean-field model with a non-cubic nonline…