نتایج جستجو برای: ising model

تعداد نتایج: 2107219  

2008
F. Y. Wu B. M. McCoy L. Chayes M. E. Fisher

Comment on a recent conjectured solution of the three-dimensional Ising model F. Y. Wu a; B. M. McCoy b; M. E. Fisher c; L. Chayes d a Department of Physics, Northeastern University, Boston, USA b C.N. Yang Institute for Theoretical Physics, State University of New York, New York, USA c Institute for Physical Science and Technology, University of Maryland, MD, USA d Department of Mathematics, U...

1997

The assets of superannuation funds have increased rapidly in the 1990s. Along with managed funds more generally, this growth has been considerably faster than the growth of assets of financial intermediaries. In large part, the rapid growth is attributable to the high earnings rates of superannuation funds. While r ising fund inflows have also contributed to growth, they have been partly offset...

1994
S. Randjbar-Daemi J. Strathdee

A class of generalized Ising models is examined with a view to extracting a low energy sector comprising Dirac fermions coupled to Yang-Mills vectors. The main feature of this approach is a set of gap equations, covariant with respect to one of the 4-dimensional crystallographic space groups.

2008
M. Sellitto

We study three kinetic models with constraint, namely the Symmetrically Constrained Ising Chain, the Asymmetrically Constrained Ising Chain, and the Backgammon Model. All these models show glassy behaviour and coarsening. We apply to them the Stillinger and Weber decomposition, and find that they share the same configurational entropy, despite of their different nonequilibrium dynamics. We conc...

2001
B. Zheng S. Trimper

Phase ordering dynamics of the (2 + 1)-and (3 + 1)-dimensional φ 4 theory with Hamiltonian equations of motion is investigated numerically. Dynamic scaling is confirmed. The dynamic exponent z is different from that of the Ising model with dynamics of model A, while the exponent λ is the same.

1994
H. ARISUE K. TABATA

We extend low-temperature series for the second moment of the correlation function in d = 3 simple-cubic Ising model from u to u using finite-lattice method, and combining with the series for the susceptibility we obtain the lowtemperature series for the second-moment correlation length to u. An analysis of the obtained series by inhomogeneous differential approximants gives critical exponents ...

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