Optical lattice
= Optical lattice
{title2=$V(x)=sE_R\sin^2(\pi x/d)$}
{wiki}
An optical lattice is a periodic <optical trap> produced by interfering light fields. Its <periodic potential> gives atomic <Bloch states> and <energy bands>. For the displayed one-dimensional lattice, the <recoil energy> is $E_R=\hbar^2\pi^2/(2md^2)$ and $s$ measures the depth in recoil units.