Physics – Quantum Physics
Scientific paper
2006-09-11
Int. J. Mod. Phys. B 23, 4422 (2009)
Physics
Quantum Physics
Scientific paper
Quantum tunneling of vortices has been found to be an important novel phenomena for description of low temperature creep in high temperature superconductors (HTSCs). We speculate that quantum tunneling may be also exhibited in mesoscopic superconductors due to vortices trapped by the Bean-Livingston barrier. The London approximation and method of images is used to estimate the shape of the potential well in superconducting HTSC quantum dot. To calculate the escape rate we use the instanton technique. We model the vortex by a quantum particle tunneling from a two-dimensional ground state under magnetic field applied in the transverse direction. The resulting decay rates obtained by the instanton approach and conventional WKB are compared revealing complete coincidence with each other.
Gulevich D. R.
Kusmartsev Feodor V.
No associations
LandOfFree
Magnetic relaxation of superconducting quantum dot: two-dimensional false vacuum decay 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 Magnetic relaxation of superconducting quantum dot: two-dimensional false vacuum decay, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Magnetic relaxation of superconducting quantum dot: two-dimensional false vacuum decay will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-25878