Fock State - Energy Eigenstates

Energy Eigenstates

Fock states are eigenstates of the Hamiltonian of the field:

where is the energy eigenvalue corresponding to . When we put in the expression for the Hamiltonian we get:

Therefore energy of the state is given by where is the frequency of the field. Note that even at the energy does not vanish. This is the zero-point energy.

Read more about this topic:  Fock State

Famous quotes containing the word energy:

    “Just as we are learning to value and conserve the air we breathe, the water we drink, the energy we use, we must learn to value and conserve our capacity for nurture. Otherwise, in the name of human potential we will slowly but surely erode the source of our humanity.”
    —Elaine Heffner (20th century)