Tunable pseudogaps due to nonlocal coherent transport in voltage-biased three-terminal Josephson junctions

摘要: We investigate the proximity effect in junctions between N=3 superconductors under commensurate voltage bias. The bias is chosen to highlight role of transport processes that exchange multiple Cooper pairs coherently more than two superconductors. Such nonlocal can be studied dc response, where local do not contribute. focus on proximity-induced normal density states we a wide parameter space. reveal presence deep and highly tunable pseudogaps other rich structures. These are due static absent for N=2 sensitive an emergent superconducting phase associated coherent transport. In comparison with results N=2, find similarities signature peaks Andreev reflections. discuss electron-hole decoherence various types junction asymmetries. Our predictions investigated experimentally using tunneling spectroscopy.