Phys. Rev. Lett. 70, 190–193 (1993)Scaling behavior of two-time correlations in a twisted nematic liquid crystalReceived 11 September 1992; published in the issue dated 11 January 1993 We measured the coarsening exponent φ and the nontrivial scaling exponent λ, which characterize how the two-time correlation function C(t,t’) scales with the correlation length L(t), C(t,t’)∝L(t)-λ when t≫t’, for a twisted nematic liquid-crystal system quenched from the isotropic phase to the nematic phase. This system is expected to be Ising-like with φ=0.5 and λ=1.25. Our values, φ=0.515±0.026, measured over two decades in time, and λ=1.246±0.079, measured over the late time period, 30 to 150 s, are in good agreement with theory. © 1993 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.70.190
DOI:
10.1103/PhysRevLett.70.190
PACS:
64.70.Md
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