Effect of Poisson ratio on cellular structure formation

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Mechanically active cells in soft media act as force dipoles. The resulting elastic interactions are long-ranged and favor the formation of strings. We show analytically that due to screening, the effective interaction between strings decays exponentially, with a decay length determined only by geometry. Both for disordered and ordered arrangements of cells, we predict novel phase transitions from paraelastic to ferroelastic and anti-ferroelastic phases as a function of Poisson ratio.
4 pages, Revtex, 4 Postscript figures included

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Soft Condensed Matter, Materials Science, Cell Behavior

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http://salesiana.dossiersoluciones.com/handle/123456789/95661

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/cond-mat/0504097
 http://arxiv.org/abs/cond-mat/0504097
 Phys. Rev. Lett. 95: 068102 (2005)
 doi:10.1103/PhysRevLett.95.068102

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arXiv