This was part of Quantum Hardware

Asymmetrically Threaded SQUID: Swiss-army knife for stabilization and operation of cat qubits

Mazyar Mirrahimi, INRIA

Wednesday, October 30, 2024



Abstract: Bosonic cat qubits stabilized by two-photon driven dissipation represent a promising approach towards hardware-efficient and fault-tolerant quantum computation. In this talk, I will explain the functioning of the Asymmetrically Threaded SQUID, a nonlinear dipole element, that implements the two-photon exchange Hamiltonian while avoiding harmful interactions. I will also explain how the same device can further be used to engineer the interactions required for performing protected operation of cat qubit. Finally, I will present recent experimental results where the ATS is further used to perform the Wigner tomography of the encoded states.