Universal ratios along a line of critical points. The Ashkin–Teller model
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چکیده
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Universal ratios along a line of critical points . The Ashkin – Teller model
The two-dimensional Ashkin-Teller model provides the simplest example of a statistical system exhibiting a line of critical points along which the critical exponents vary continously. The scaling limit of both the paramagnetic and ferromagnetic phases separated by the critical line are described by the sine-Gordon quantum field theory in a given range of its dimensionless coupling. After comput...
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Universal ratios of critical amplitudes for the shear viscosity
2014 An analysis of the available shear viscosity data for the critical mixture of water and isobutyric acid gives amplitude ratios in agreement with the theoretical prediction of Peliti. LE JOURNAL DE PHYSIQUE LETTRES TOME 40, 15 OCTOBRE 1979, Classification Physics Abstracts 64. 70J 66. 90 In recent years the shear viscosity of critical fluids has attracted an increasing amount of attention. ...
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ژورنال
عنوان ژورنال: Nuclear Physics B
سال: 2004
ISSN: 0550-3213
DOI: 10.1016/j.nuclphysb.2004.01.007