教師資料查詢 | 類別: 期刊論文 | 教師: 曾文哲 Tzeng,Wen-jer (瀏覽個人網頁)

標題:Dimers on a simple-quartic net with a vacancy
學年91
學期2
出版(發表)日期2003/03/01
作品名稱Dimers on a simple-quartic net with a vacancy
作品名稱(其他語言)
著者曾文哲; Tzeng, Wen-jer; Wu, F. Y.
單位淡江大學物理學系
出版者Springer
著錄名稱、卷期、頁數Journal of Statistical Physics 110(3-6), pp.671-689
摘要A seminal milestone in lattice statistics is the exact solution of the enumeration of dimers on a simple-quartic net obtained by Fisher, Kasteleyn, and Temperley (FKT) in 1961. An outstanding related and yet unsolved problem is the enumeration of dimers on a net with vacant sites. Here we consider this vacant-site problem with a single vacancy occurring at certain specific sites on the boundary of a simple-quartic net. First, using a bijection between dimer and spanning tree configurations due to Temperley, Kenyon, Propp, and Wilson, we establish that the dimer generating function is independent of the location of the vacancy, and deduce a closed-form expression for the generating function. We next carry out finite-size analyses of this solution as well as that of the FKT solution. Our analyses lead to a logarithmic correction term in the large-size expansion for the vacancy problem with free boundary conditions. A concrete example exhibiting this difference is given. We also find the central charge c=−2 in the language of conformal field theory for the vacancy problem, as versus the value c=1 when there is no vacancy.
關鍵字Dimersspanning;treesfinite-size;analysis
語言英文(美國)
ISSN0022-4715;1572-9613
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