Koch-Yu-Gambetta-Houck-Schuster-Blais-Devoret-Girvin-Schoelkopf 2007 transmon qubit: a Cooper-pair box shunted by a large capacitor to reach the E_J/E_C ≫ 1 regime (typically E_J/E_C ≈ 50). Circuit Hamiltonian: H = 4E_C(n̂ − n_g)² − E_J…
Koch-Yu-Gambetta-Houck-Schuster-Blais-Devoret-Girvin-Schoelkopf 2007 transmon qubit: a Cooper-pair box shunted by a large capacitor to reach the E_J/E_C ≫ 1 regime (typically E_J/E_C ≈ 50). Circuit Hamiltonian: H = 4E_C(n̂ − n_g)² − E_J…