# A little background on the role of gauge invariance and energy

We study the energy of a superconductor in the presence of the gauge field $G_G$ in the dipole sector of the theory of quantum gravity. In particular, we study the energy of a superconductor in the presence of the gauge field $G_G$ in the dipole sector by using the generalization of the energy tables of the quark-proton-proton theory. We show that the energy of a superconductor in the dipole sector is always equal to the energy of the superconducted state in the superconducting sector. We also show that the energy of a superconductor in the dipole sector is always equal to the energy of the superconducting state in the superconducting sector.