Transfer-Matrix Study of Hard-Core Singularity for Hard-Square Lattice Gas
نویسنده
چکیده
A singularity on the negative fugacity axis of the hard-square lattice gas is investigated in terms of numerical diagonalization of transfer matrices. The location of the singular point z− c and the critical exponent ν are accurately determined by the phenomenological renormalization technique as −0.11933888188(1) and 0.416667(1), respectively. It is also found that the central charge c and the dominant scaling dimension xσ are −4.399996(8) and −0.3999996(7), respectively. These results strongly support that this singularity belongs to the same universality class as the Yang-Lee edge singularity (c = − 22 5 , xσ = − 25 and ν = 5 12 ).
منابع مشابه
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