# Dissipation-enabled fractional Josephson effect

@article{Sticlet2018DissipationenabledFJ, title={Dissipation-enabled fractional Josephson effect}, author={D. Sticlet and J. Sau and A. Akhmerov}, journal={Physical Review B}, year={2018}, volume={98} }

The anomalous 4π-periodic ac Josephson effect, a hallmark of topological Josephson junctions, was experimentally observed in a quantum spin Hall insulator. This finding is unexpected due to time-reversal symmetry preventing the backscattering of the helical edge states and therefore suppressing the 4π-periodic component of the Josephson current. Here, we analyze the two-particle inelastic scattering as a possible explanation for this experimental finding. We show that a sufficiently strong… CONTINUE READING

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