Physics – Condensed Matter – Other Condensed Matter
Scientific paper
2007-04-11
Phys. Rev. A 76, 043613 (2007)
Physics
Condensed Matter
Other Condensed Matter
11 pages, 7 figures
Scientific paper
10.1103/PhysRevA.76.043613
The spin vortices are shown to be created through the Kibble-Zurek (KZ) mechanism in a quantum phase transition of a spin-1 ferromagnetic Bose-Einstein condensate, when the applied magnetic field is quenched below a critical value. It is shown that the magnetic correlation functions have finite correlation lengths, and magnetizations at widely separated positions grow in random directions, resulting in spin vortices. We numerically confirm the scaling law that the winding number of spin vortices is proportional to the square root of the length of the closed path, and for slow quench, proportional to $\tau_{\rm Q}^{-1/6}$ with $\tau_{\rm Q}$ being the quench time. The relation between the spin conservation and the KZ mechanism is discussed.
Kawaguchi Yuki
Saito Hiroki
Ueda Masahito
No associations
LandOfFree
Kibble-Zurek mechanism in a quenched ferromagnetic Bose-Einstein condensate does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Kibble-Zurek mechanism in a quenched ferromagnetic Bose-Einstein condensate, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Kibble-Zurek mechanism in a quenched ferromagnetic Bose-Einstein condensate will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-673131