66 citations · 390 across the 14 of their papers we have counts for
14 papers
Stability of coreless vortices in ferromagnetic spinor Bose-Einstein condensates
V. Pietila, M. Mottonen, S. M. M. Virtanen
We study the energetic and dynamic stability of coreless vortices in nonrotated spin-1 Bose-Einstein condensates, trapped with a three-dimensional optical potential and a Ioffe-Pri…
Vortex pump for dilute Bose-Einstein condensates
Mikko Mottonen, Ville Pietila, Sami M. M. Virtanen
The formation of vortices by topological phase engineering has been realized experimentally to create the first two- and four-quantum vortices in dilute atomic Bose-Einstein conden…
Stability and dynamics of vortex clusters in nonrotated Bose-Einstein condensates
V. Pietila, M. Mottonen, T. Isoshima +2
We study stationary clusters of vortices and antivortices in dilute pancake-shaped Bose-Einstein condensates confined in nonrotating harmonic traps. Previous theoretical results on…
Dynamically stable multiply quantized vortices in dilute Bose-Einstein condensates
J. A. M. Huhtamäki, M. Möttönen, S. M. M. Virtanen
Multiquantum vortices in dilute atomic Bose-Einstein condensates confined in long cigar-shaped traps are known to be both energetically and dynamically unstable. They tend to split…
Splitting times of doubly quantized vortices in dilute Bose-Einstein condensates
J. A. M. Huhtamäki, M. Möttönen, T. Isoshima +2
Recently, the splitting of a topologically created doubly quantized vortex into two singly quantized vortices was experimentally investigated in dilute atomic cigar-shaped Bose-Ein…
Collapse and revival of excitations in Bose-Einstein condensates
M. Mottonen, S. M. M. Virtanen, M. M. Salomaa
We study the energies and decay of elementary excitations in weakly interacting Bose-Einstein condensates within a finite-temperature gapless second-order theory. The energy shifts…