Wednesday, July 17, 2013

1307.4183 (Roman Belousov et al.)

Statistical distribution of bonding distances in a unidimensional solid    [PDF]

Roman Belousov, Paolo De Gregorio, Lamberto Rondoni, Livia Conti
We study a Fermi-Pasta-Ulam-like chain with realistic potentials, which models a unidimensional solid in contact with heat baths at some temperature. We formulate an explicit analytical expression for the probability density of bonding distances between neighbor particles, which depends on temperature similarly to the distribution of velocities. Its validity is verified with a striking accuracy through simulations.
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