Applications of the CAM Based on a New Decoupling Procedure of Correlation Functions in the One-Dimensional Contact Process
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概要
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The one-dimensional contact process (CP) is studied by a systematic series of ap-proximations. A new decoup[ing procedure of correlation functions is proposed bycombining the idea of Suzuki's correlation-identity-decoupling (CID) with a conceptof window. Liggett's approximations are also considered. Applying Suzuki'scoherent-anomaly method (CAM) to the mean-field-type solutions, the values of thecritical point and the critical exponents are estimated as 1.=1.6490(40.0008),/l7=0.280('4-0.013), d(=/7/J)=1.734(80.001), /l'=0.627(':0.005). Finally a cornparison with other estimates is shown.coherent-anomaly method, correlation-identity-decoupling, phase transition,critical phenomena, mean-field-type solution, one-dirnensiccnal contact process,interacting particle systems
- 社団法人日本物理学会の論文
- 1990-05-15
著者
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Katori Makoto
Department Of Pharmacology Kitasato University School Of Medicine
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Konno Norio
Department Of Applied Mathematics Faculty Of Engineering Yokohama National University
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Konno Norio
Department Of General Education Muroran Institute Of Technology
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