T. Moore and D. Schroeder, Am. J. Phys., 65 (1), 26-36 (1996).
The authors compute the multiplicities (density of states) numerically for an Einstein solid - a collection of identical quantum harmonic oscillators. It is shown that if two such…
D. Stauffer, Am. J. Phys., 76 (4), 470-473 (2007).
The author reviews models of economic opinions, urban segregation, and language change and shows that the two-dimensional Ising model gives about the same results in each case.
F. Herrmann and P. Wurfel, Am. J. Phys., 73 (8), 717-721 (2005).
Thermodynamic states and processes involving light are discussed in which the chemical potential of light is nonzero. Light with nonzero chemical potential is produced in…