K Seki et al 2007 J. Phys.: Condens. Matter 19 072101 doi:10.1088/0953-8984/19/7/072101
K Seki1, S Komura2,4 and M Imai3
Show affiliationsWe investigate the dynamics of critical fluctuations in binary fluid membranes using a two-dimensional hydrodynamic model with momentum decay to the surrounding water. In particular, the decay rate of concentration fluctuations is obtained analytically. In the limit of small wavenumber q with respect to the correlation length, the decay rate is proportional to q2, as usual. In the large-q limit, however, the effective diffusion coefficient increases only logarithmically with q.
87.16.D- Membranes, bilayers, and vesicles
87.16.A- Theory, modeling, and simulations
47.85.Dh Hydrodynamics, hydraulics, hydrostatics
87.16.Uv Active transport processes
05.40.-a Fluctuation phenomena, random processes, noise, and Brownian motion
Issue 7 (21 February 2007)
Received 30 October 2006, in final form 12 January 2007
Published 2 February 2007
K Seki et al 2007 J. Phys.: Condens. Matter 19 072101
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