Manipulation of Cooper Pair Entanglement in Hybrid Topological Josephson Junctions

Gianmichele Blasi, Fabio Taddei, Vittorio Giovannetti, Alessandro Braggio
<span title="2019-09-16">2019</span> <i title="MDPI AG"> <a target="_blank" rel="noopener" href="" style="color: black;">Proceedings (MDPI)</a> </i> &nbsp;
The non-local manipulation of spin-entangled states by means of local gating in two parallel 2D topological insulators properly connected to two superconducting electrodes is studied. We calculate analytically the current-phase relationship of the Josephson current making use of the scattering matrix approach and we identify the various local and non-local scattering mechanisms. We show that the Josephson critical current, remarkably, allows a direct quantification of the entanglement manipulation.
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="">doi:10.3390/proceedings2019012044</a> <a target="_blank" rel="external noopener" href="">fatcat:6inosqbnenexlapxsmc2b2ej6m</a> </span>
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