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Shape waves in 2D Josephson junctions: exact solutions and time dilation

Authors :
Gulevich, D. R.
Kusmartsev, F. V.
Savel'ev, S.
Yampol'skii, V. A.
Nori, F.
Source :
Phys. Rev. Lett. 101, 127002 (2008)
Publication Year :
2008

Abstract

We predict a new class of excitations propagating along a Josephson vortex in two-dimensional Josephson junctions. These excitations are associated with the distortion of a Josephson vortex line and have an analogy with shear waves in solid mechanics. Their shapes can have an arbitrary profile, which is retained when propagating. We derive a universal analytical expression for the energy of arbitrary shape excitations, investigate their influence on the dynamics of a vortex line, and discuss conditions where such excitations can be created. Finally, we show that such excitations play the role of a clock for a relativistically-moving Josephson vortex and suggest an experiment to measure a time dilation effect analogous to that in special relativity.<br />Comment: 10 pages, 2 figures

Details

Database :
arXiv
Journal :
Phys. Rev. Lett. 101, 127002 (2008)
Publication Type :
Report
Accession number :
edsarx.0808.1514
Document Type :
Working Paper
Full Text :
https://doi.org/10.1103/PhysRevLett.101.127002