nor the other ; The properties and energy of each surface-like state depend on two and the other , but neither one of the corresponding two nor the other ; The properties and energy of each bulk-like state depend on three , but neither one . Among the above states from the same bulk energy band, the following general relations exist: The energy of the vertex-like state > The energy of every edge-like state > The energy of every relevant surface-like state > The energy of every relevant bulk-like state. Those general relations lead to some conclusions that differ from those traditionally believed for physics in low-dimensional systems (see Bloch's theorem). Relativistic effects The probability density does not go to zero at the nodes if relativistic effects are taken to account via Dirac equation. See also History of Quantum Mechanics Finite potential well Delta function potential Gas in a box Particle in a ring Particle in a spherically symmetric potential Quantum harmonic oscillator Semicircle potential well Configuration integral (statistical mechanics) Bloch's theorem References Bibliography External links Configuration integral (statistical mechanics), 2008. this wiki site is down; see this article in the web archive on 2012 April 28. Quantum models Quantum mechanical potentials