Together with the Fatemi Lab at Cornell University, we are excited to announce our new preprint “Dissipationless Nonlinearity in Quantum Material Josephson Diodes”.
You can check it out here: https://arxiv.org/abs/2310.12198.

The Josephson diode effect has seen much attention in Condensed Matter lately as a tool to detect broken symmetries. But what about quantum information applications? Do Josephson diodes have a role to play here? In our new preprint, we explore this question. Specifically, we show that Josephson diodes can generate three-wave mixing, which is important for building amplifiers, bosonic qubits, and qubit couplers. Moreover, Josephson diodes permit such three-wave mixing with either no parametric bias whatsoever or fast control with gate voltages instead of magnetic flux. It will be interesting to now explore more broadly the three-wave mixing capabilities of different Josephson diode systems.