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25 papers · 1 filter
Introducing Small-World Network Effect to Critical Dynamics
Jian-Yang Zhu, Han Zhu
We analytically investigate the kinetic Gaussian model and the one-dimensional kinetic Ising model on two typical small-world networks (SWN), the adding-type and the rewiring-type.…
Division of Labor as the Result of Phase Transition
Jinshan Wu, Zengru Di, Z. R. Yang
The emergence of labor division in multi-agent system is analyzed by the method of statistical physics. Considering a system consists of N homogeneous agents. Their behaviors are d…
Actions for Vacuum Einstein's Equation with a Killing Symmetry
Han He, Yongge Ma, Xuejun Yang
In a space-time with a Killing vector field which is either everywhere timelike or everywhere spacelike, the collection of all trajectories of gives a 3-dimension s…
Holes as Dipoles in a Doped Antiferromagnet and Stripe Instabilities
Su-Peng Kou, Zheng-Yu Weng
Based on an effective model of a doped antiferromagnetic Mott insulator, we show that a doped hole will induce a dipole-like spin configuration in a spin ordered phase at low dopin…
Can an observer really catch up with light
Guihua Tian, Zhao Zheng
Given a null geodesic with a point in conjugate to along , there will be a variation of which will give a time-like curve from to .…
Schwinger-Boson Mean-Field Theory of Mixed-Spin Antiferromagnet
Yun Song, Shiping Feng
The Schwinger-boson mean-field theory is used to study the three-dimensional antiferromagnetic ordering and excitations in compounds , a large family of quasi-one-dimen…