The two-dimensional renormalization map of the diamond-hierarchical Ising model in an external field is given, and pictures of the distribution of zeros of the partition function in the complex plane of temperature for varying values of coupling constant and external field are shown. Critical ...
zero temperature two-dimensional random-field Ising modelcritical valuedisorder strengthdiscontinuous sharp jumpWe study the dynamics of spin flipping at first order transitions inzero temperature two-dimensional random-field Ising model driven by anexternal field. We find a critical value of the ...
A Method of Determining the Orderings of the Ising Model with Several Neighbor Interactions under the Magnetic Field and Applications to Hexagonal Lattices A method is presented to investigate spin orderings in the ground states of Ising models with several neighbor interactions under the external magn...
We report an effective functional form for the spin-spin correlation function of the 2D Ising model as a function of temperature and field. Although the Ising model has been well studied, no analytical result for the spin-spin correlation function exists for arbitrary magnetic fields and ...
52-57 Ansatz for the Two-Dimensional Ising Model in an External Magnetic Field Moorad Alexanian Department of Physics and Physical Oceanography University of North Carolina Wilmington, Wilmington, NC 28403-5606 E-mail: alexanian@uncw.edu (Received: November 11, 2024; Revised: November 30, 2024; ...
We present an efficient algorithm for finding the first excited state of therandom-field Ising model based on the equivalence of its Hamiltonian with the capacity of cuts of a certain network. Some preliminary results in the two-dimensional case with a Gaussian distribution of random fields are ...
The paper presents a new method obtaining the Onsager solution and computations of asymptotic forms of low-temperature free energy for the 2D Ising model in the external magnetic field $(H)$. The free energy in the limiting case of the magnetic field tending to zero $(Ho 0, N,Mo\infty)...
摘要: External field prior improves image segmentation accuracy.Manual segmentation of one image is used as a prior for subsequent images.Applicable to longitudinal imaging, such as image-guided radiation therapy.关键词: Bayesian image analysis Hidden Markov random field Image-guided radiation therapy ...
The effects of the external electric field on the ferroelectric superlattice with two alternating layers have been studied using the transverse Ising model based on the effective-field theory with the differential technique. The hysteresis loops and susceptibility of the system have been given. The str...
We numerically investigate the three-dimensional O(6) model on 12to 120lattices. From Binder's cumulant at vanishing magnetic field we obtain the critical coupling J= 1.42865(5) and verify this value with the χ-method. The universal value of Binder's cumulant at this point is g(J) = -...