Effect of Long-Range Interactions in the Conserved Kardar-Parisi-Zhang Equation

Details Effect of Long-Range Interactions in the Conserved Kardar-Parisi-Zhang Equation Effect of Long-Range Interactions in the Conserved Kardar-Parisi-Zhang Equation

1998-06-02

arxiv.org/abs/cond-mat/9806028v1

Phys.Rev. E, 58 (1998) 5467

Physics

Condensed Matter

Statistical Mechanics

4 pages(LaTex), 1 figure(Postscript)

Scientific paper

10.1103/PhysRevE.58.5467

The conserved Kardar-Parisi-Zhang equation in the presence of long-range nonlinear interactions is studied by the dynamic renormalization group method. The long-range effect produces new fixed points with continuously varying exponents and gives distinct phase transitions, depending on both the long-range interaction strength and the substrate dimension $d$. The long-range interaction makes the surface width less rough than that of the short-range interaction. In particular, the surface becomes a smooth one with a negative roughness exponent at the physical dimension d=2.

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