Quantum tunneling of a single semifluxon in a 0-pi Josephson junction

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Goldobin, E.; Vogel, K.; Schleich, W. P.; Koelle, D.; Kleiner, R.;

We consider a symmetric 0-pi Josephson junction of length $L$, which classically can be in one of two degenerate ground states up or down, corresponding to supercurrents circulating clockwise or counterclockwise around the 0-pi boundary. When the length $L$ of the junct... View more
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