Coupled Josephson Junction Circuit Diagram - Superconducting Qubit Design #224285 (License: Personal Use)

This diagram illustrates a tunable superconducting quantum circuit where two Josephson junctions (J_S,N and J_N,L) are coupled through a shunt capacitor C_N and an imaginary inductance jB_N, enabling flux bias control. Below the main circuit, individual components J_S,1, J_1,L, and J_S,L represent modular junction elements used in scalable qubit arrays. The layout reflects standard notation in circuit quantum electrodynamics (cQED) for designing transmon or fluxonium-type qubits.

Used in academic publications, quantum computing textbooks, and technical documentation for superconducting qubit design; targets researchers, graduate students, and engineers working on quantum hardware development.