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Zhou, Haijun; Zhou, HJ , Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China
T -> 0 mean-field population dynamics approach for the random 3-satisfiability problem
发表期刊PHYSICAL REVIEW E
关键词K-satisfiability Problem Computational-complexity Cavity Method Phase Entropy States
摘要During the past decade, phase-transition phenomena in the random 3-satisfiability (3-SAT) problem has been intensively studied by statistical physics methods. In this work, we study the random 3-SAT problem by the mean-field first-step replica-symmetry-broken cavity theory at the limit of temperature T -> 0. The reweighting parameter y of the cavity theory is allowed to approach infinity together with the inverse temperature beta with fixed ratio r=y/beta. Focusing on the system's space of satisfiable configurations, we carry out extensive population dynamics simulations using the technique of importance sampling, and we obtain the entropy density s(r) and complexity Sigma(r) of zero-energy clusters at different r values. We demonstrate that the population dynamics may reach different fixed points with different types of initial conditions. By knowing the trends of s(r) and Sigma(r) with r, we can judge whether a certain type of initial condition is appropriate at a given r value. This work complements and confirms the results of several other very recent theoretical studies.
2008
ISSN1539-3755
卷号77期号:6页码:-
学科领域Physics
收录类别SCI
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文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/5524
专题理论物理所科研产出_SCI论文
通讯作者Zhou, HJ , Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China
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GB/T 7714
Zhou, Haijun,Zhou, HJ , Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China. T -> 0 mean-field population dynamics approach for the random 3-satisfiability problem[J]. PHYSICAL REVIEW E,2008,77(6):-.
APA Zhou, Haijun,&Zhou, HJ , Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China.(2008).T -> 0 mean-field population dynamics approach for the random 3-satisfiability problem.PHYSICAL REVIEW E,77(6),-.
MLA Zhou, Haijun,et al."T -> 0 mean-field population dynamics approach for the random 3-satisfiability problem".PHYSICAL REVIEW E 77.6(2008):-.
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