In a phase qubit, the biased current is lower than the critical electric current of the Josephson junction. What is expected for the current flowing in the Josephson junction (give a qualitative answer and a graph of the U(Ī“))?
What is the average
$$ \langle V \rangle = \frac{1}{T} \int_0^T V(t) dt $$
voltmeter reading, connected parallel to the Josephson junction?