Leakage Mobility and Passive Leakage Removal in Transmons with Tunable Couplers

Taneli Tolppanen, Gonzalo Martín-Vázquez, Sasu Tuohino +1

Qubit leakage is a noticeable source of errors for quantum computing. In quantum processors, leakage excitations traveling between qubits generate correlated errors and perturb gat…