It looks to be a transmission gate (a controlled switch). It’s analogous to a N-type MOSFET. If they can create an additional transmission gate that couples the

It looks to be a transmission gate (a controlled switch). It’s analogous to a N-type MOSFET. If they can create an additional transmission gate that couples the inputs only when the gate pulse isn’t present, then they’ve achieved similar to a P-type MOSFET, and they could implement logic in almost the same way CMOS does. It would be helpful if the article gave at least some basic information about the device physics.