Flux-tunable Josephson effect in a four-terminal junction

This is the authors' abstract. We don't add key points for this paper.

The authors measure here a four-terminal Josephson junction within two coupled DC superconducting quantum interference devices. The device behaves as a tunable φ₀ junction with a nontrivial current-phase relation. Its current-phase relation, and the current-phase relation of other multiterminal junctions including some purported to host Andreev molecule states, are shown to be well described by a network of two-terminal junctions coupling the junction terminals without any Andreev bound state interactions.