Interface Fluctuations under Shear

Details Interface Fluctuations under Shear Interface Fluctuations under Shear

2001-02-02

arxiv.org/abs/cond-mat/0102043v2

Phys. Rev. E 64, 012102 (2001)

Physics

Condensed Matter

Statistical Mechanics

3 pages, shorter version, additional references

Scientific paper

10.1103/PhysRevE.64.012102

Coarsening systems under uniform shear display a long time regime characterized by the presence of highly stretched and thin domains. The question then arises whether thermal fluctuations may actually destroy this layered structure. To address this problem in the case of non-conserved dynamics we study an anisotropic version of the Burgers equation, constructed to describe thermal fluctuations of an interface in the presence of a uniform shear flow. As a result, we find that stretched domains are only marginally stable against thermal fluctuations in $d=2$, whereas they are stable in $d=3$.

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