International Scholarly Research Notices / 2013 / Article / Fig 9

Review Article

Topological Order: From Long-Range Entangled Quantum Matter to a Unified Origin of Light and Electrons

Figure 9

Drawing a grid on a sold helps us to see the deformation of the solid. The vector in (3) is the displacement of a vertex in the grid. In addition to the compression wave (i.e., the density wave), a solid also supports transverse wave (wave of shear deformation) as shown in the above figure.