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Transcript
Periodic boundary conditions are routinely employed in molecular dynamics simulations to
simulate bulk material and remove surface effects.
Computer Physics Communications
Volume 95, Issue 1, May 1996, Pages 39-46
We avoid difficulties with an infinite universe by applying periodic boundary
conditions
in a cube of some large volume V .
19. BIG-BANG COSMOLOGY
Amsler et al. (Particle Data Group), PL B667, 1 (2008)Revised
September 2009 by K.A. Olive (University of Minnesota) and J.A. Peacock
(University of Edinburgh).
Wikip Schrödinger
In physics, specifically quantum mechanics, the Schrödinger equation is an equation that
describes how the quantum state of a physical system changes in time. It is as central to quantum
mechanics as Newton's laws are to classical mechanics.
In the standard interpretation of quantum mechanics, the quantum state, also called a
wavefunction or state vector, is the most complete description that can be given to a physical
system. Solutions to Schrödinger's equation describe not only molecular, atomic and subatomic
systems, but also macroscopic systems, possibly even the whole universe. The equation is named
after Erwin Schrödinger, who constructed it in 1926.[1]
Periodiska randvillkor Kallas även Born-von Karman boundary conditions