Josephson Critical Current Calculator
Superconducting quantum physics: Calculate tunnel junction critical current ($I_c$) via the Ambegaokar-Baratoff relation, Josephson coupling energy ($E_J$), plasma frequency ($\omega_p$), and Stewart-McCumber damping parameter ($\beta_c$).
Superconducting Electrodes & Energy Gap
Dilution fridge base: 20 mK
Junction resistance above Tc
Junction Geometry & Capacitance
1 fF = 10⁻¹⁵ F (Transmon ~50–100 fF)
Quantum Josephson Properties Output
Critical Current I_c:
--
nanoamperes (nA)
Josephson Energy E_J / h:
--
GHz (Kelvin equivalent)
Josephson Plasma Frequency f_p:
--
GHz natural oscillation
Stewart-McCumber Parameter β_c:
--
Damping regime
| Josephson Inductance L_J₀ = Φ₀ / (2π Ic): | -- |
| Energy Gap at Temperature Δ(T): | -- |
| Ambegaokar-Baratoff Product I_c · R_n: | -- |
| I-V Curve Hysteresis Character: | -- |
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