Results 271 to 280 of about 59,462 (310)
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Kawasaki Dynamics on Square Lattice
Communications in Theoretical Physics, 1996The bond-moving and decimation renormalization group techniques are applied to obtaining the critical dynamic exponent of the Kawasaki-Ising model on square lattice. The result is found to be , where , is the critical dynamic exponent of the Glauber model on the same lattice. We guess that the relation may be valid for all -dimensional systems with .
S. Wu, Z.R. Yang, Yong Qin
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Inflating square and rectangular lattice vesicles
Journal of Physics A: Mathematical and General, 2004Summary: Two simple models of lattice vesicles in two and in three dimensions are examined. Lattice vesicles have a rich mathematical nature, and the combinatorial and scaling properties of square and rectangular lattice vesicle models are investigated and then generalized to three dimensions.
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Square to hexagonal lattices conversion
Signal Processing, 1985Abstract In order to build up hexagonal digital pictures from square ones, each point of the hexagonal lattice is given the value of its nearest neighbour in a superimposed square lattice. This simple rule has the advantage to transform a binary set into a binary set and a grey-tone function into a grey-tone function. In case of convolution, it gives
J. Serra, B. Laÿ
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Square lattice microstructure terahertz waveguide
Proceedings of SPIE, 2006Recently a significant advancement in THz source and detector technology have arisen a number of potential application such as space-based communication, THz sensing and imaging for military and security, biology and so on. However, THz spectroscopic techniques uses mainly free space propagation and guided wave still remains a challenge in this ...
Yue Sun, Shuqin Lou, Shujun Lou
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2002
The classical continuum model of the material used above can be considered only as the slowly-varying approximation of a discrete or structured material. This accuracy is sufficient for the analysis of regular processes in which waves corresponding to the microstructural scales can be neglected. However, macro-processes exist, and they are not a rarity
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The classical continuum model of the material used above can be considered only as the slowly-varying approximation of a discrete or structured material. This accuracy is sufficient for the analysis of regular processes in which waves corresponding to the microstructural scales can be neglected. However, macro-processes exist, and they are not a rarity
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2021
Abstract“Electrons in a square lattice” describes how a two-dimensional square lattice gives a helpful case intermediate between one dimension and the complication of three dimensions. The “empty lattice” divides up k-space into Brillouin zones in anticipation of a periodic potential whose period is given but whose magnitude is at this stage zero.
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Abstract“Electrons in a square lattice” describes how a two-dimensional square lattice gives a helpful case intermediate between one dimension and the complication of three dimensions. The “empty lattice” divides up k-space into Brillouin zones in anticipation of a periodic potential whose period is given but whose magnitude is at this stage zero.
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Three-Colorings of the Square Lattice: A Hard Squares Model
Journal of Mathematical Physics, 1970The evaluation of the partition function of the 2-dimensional ice model is equivalent to counting the number of ways of coloring the faces of the square lattice with three colors so that no two adjacent faces are colored alike. In this paper we solve a generalized problem in which activities are associated with the colors.
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Square lattice photonic-crystal collimator
Photonics and Nanostructures - Fundamentals and Applications, 2003Abstract The anomalous dispersion of planar photonic crystals (PhCs) near the dielectric band edge is utilised to control the wavelength-dependent propagation of light. Light beams with up to ±10° divergence were cleanly collimated over a 40 nm (1260–1300 nm) bandwidth using a square lattice.
Lijun Wu +3 more
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The bond bending model on triangular lattice and square lattice
Zeitschrift für Physik B Condensed Matter, 1996The bond bending model is studied using the series expansion method on a triangular lattice and on a square lattice. The elastic splay susceptibility χSR and the elastic compressional susceptibility χel are calculated up to 11th order for the triangular lattice and up to 14th order for the square lattice.
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Least-squares lattice interpolation filters
Proceedings of ICC/SUPERCOMM'94 - 1994 International Conference on Communications, 2002This paper develops a time as well as order update recursion for linear least-squares lattice (LSL) interpolation filters. The LSL interpolation filter has the nice stage-to-stage modularity which allows its length to be increased or decreased "two-sidedly" (i.e., both past and future) without affecting the already computed parameters.
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