According to one embodiment, an electronic circuit includes a first current path, a second current path, and a third current path. The first current path includes a first Josephson junction. The second current path includes a second Josephson junction. The third current path includes a plurality of third Josephson junctions. One end of the second current path is electrically connected to one end of the first current path. Another end of the second current path is electrically connected to another end of the first current path. One end of the third current path is electrically connected to the one end of the first current path and the one end of the second current path. Another end of the third current path is electrically connected to the other end of the first current path and the other end of the second current path.