Lifshitz point
= Lifshitz point
{c}
{title2=$K(p)\sim p_\perp^2+p_\parallel^4$}
A multicritical point where disordered, spatially uniform ordered and spatially modulated phases meet. The quadratic stiffness in one or more directions vanishes, so a positive higher-derivative term stabilises the <Landau-Ginzburg theory>. For a uniaxial case the kernel at the point has $p_\perp^2+p_\parallel^4$, with the coefficient of $p_\parallel^2$ tuned to zero.