Bloch state
= Bloch state
A Bloch state is an energy eigenstate of a lattice-periodic Hamiltonian that is simultaneously an eigenstate of every lattice translation. It can be written as $\psi_k(x)=e^{ik\cdot x}u_k(x)$ with lattice-periodic $u_k$.
= Bloch state
A Bloch state is an energy eigenstate of a lattice-periodic Hamiltonian that is simultaneously an eigenstate of every lattice translation. It can be written as $\psi_k(x)=e^{ik\cdot x}u_k(x)$ with lattice-periodic $u_k$.