title: Concentration fluctuations in binary fluid membranes.
abstract: We 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.
authors.affiliation: National Institute of Advanced Industrial Science and Technology (AIST), Ibaraki 305-8565, Japan.
authors.forename: K
authors.initials: K
authors.lastname: Seki
authors.forename: S
authors.initials: S
authors.lastname: Komura
authors.forename: M
authors.initials: M
authors.lastname: Imai