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This topic has appeared in the English Wikipedia rankings 1 time. It first appeared on 2026-08-14 and was most recently seen on 2026-08-14.
The Born–von Karman boundary condition requires the wave function to be periodic on a certain Bravais lattice. Named after Max Born and Theodore von Kármán, this periodic boundary condition is often applied in solid-state physics to model an ideal crystal. Born and von Kármán published a series of articles in 1912 and 1913 that presented this model of the specific heat of solids based on the crystalline hypothesis and included this boundary condition. Historically, the Born-von Karman boundary condition is, like the Debye model, an improvement upon the Einstein model of solids, the first quantum theory of specific heats.
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