Tunable coupling between Xmon qubit and coplanar waveguide resonator |
(a) Layout schematic diagram of tunable coupler. (b) Optical micrograph of entire circuit chip featuring multiple Xmon qubits coupled to central bus resonator. Schematic in panel (a) refers to area enclosed in yellow square. (c) Equivalent circuit schematic plot showing Xmon qubit, bus resonator, and tunable coupler in between. Cross symbol refers to Josephson junction. |