A DC voltage V is applied across a Josephson junction between two superconductors with a phase difference ϕ0 . If I0 and k are constants that depend on the properties of the junction, the current flowing through it has the form
1
\(I_{0} \sin \left(\frac{2 e V t}{\hbar}+\phi_{0}\right) \ \)
2
\(k V \sin \left(\frac{2 e V t}{\hbar}+\phi_{0}\right)\ \)
3
kV sin ϕ0
4
I0 sin ϕ0 + kV