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Sample LaTeX Document   (Site not responding. Last check: 2007-11-03) Excellent agreement is found between the ansatz and literature data on solutions of poly-$\alpha$-methylstyrene, polybutadiene, polystyrene, and polyisoprene stars is found. The ansatz is based on a two-variable extension of the renormalization-group derivation\cite{RGderive} of the hydrodynamic scaling model\cite{HSM} of polymer dynamics, including the phenomenological\cite{Quinlan} analytic structure of the concentration dependence of the viscosity at elevated concentration. In this paper, the temporal scaling ansatz is tested against literature data on the viscoelasticity of star polymers. users.wpi.edu /~phillies/utsstar1.htm   (3776 words)

Aurora in Four Voices by Catherine Asaro Her hair was a cloud of fl curls with gold tips, and dark lashes framed her eyes–green eyes, the color of a leaf in the forest. He was trapped on Ansatz for life and they both knew she would soon leave. It led them to settle on Ansatz in the forgiving dark, where they traded the fruits of their genius for dreams, in penance for the sins of their violent siblings. www.analogsf.com /0209/Aurora.shtml   (11312 words)

[No title]   (Site not responding. Last check: 2007-11-03) The Bethe ansatz for the one-dimensional s=1/2 Heisenberg ferromagnet is introduced at an elementary level. Building on the fundamentals introduced in part I, we employ the Bethe ansatz to study some ground-state properties (energy, magnetization, susceptibility) of the one-dimensional s=1/2 Heisenberg antiferromagnet in zero and nonzero magnetic field. We employ the Bethe ansatz to calculate matrix elements and show how the results of such a calculation can be used to predict lineshapes for neutron scattering experiments on quasi-1D antiferromagnetic compounds. www.phys.uri.edu /~gerhard/introbethe.html   (181 words)

The two-realty ansatz Unlike most dualistic theories, the two-reality ansatz (Thesis 1-12) avoids the dilemma between anti-physicalism and epiphenomenalism (Thesis 3). The two-reality ansatz is a consistent, Ockham-shaved framework for a world view which accounts for concrete e-experience not supervenient on anything physical. The two-reality ansatz is derived from the common-sense world view by leaving things out (not x-real properties of x-real objects). www.rossberg.net /ag/2ra/master.html   (636 words)

Rice ansatz   (Site not responding. Last check: 2007-11-03) The dynamics of a kink driven by noise is analysed using the two collective variables of the Rice ansatz: position and width. potential in the overdamped limit, the pair of stochastic differential equations for the collective variables are derived without approximation other than the ansatz itself. From the steady state probability density of the kink width, the diffusivity of a kink is calculated. www.amsta.leeds.ac.uk /~grant/riceod.html   (73 words)

[No title]   (Site not responding. Last check: 2007-11-03) The precise working of the method can be controlled by a number of options; especially it is possible to prescribe a special ansatz for the symmetry generators. Especially, it is possible to prescribe a special ansatz for the generators which leads often to a considerable speed up. A very simple use of this option is to choose one’s own names for the coefficients of the generic ansatz. www.sciface.com /STATIC/DOC30/eng/detools_ncdetsys.html   (1224 words)

Citebase - Bethe Ansatz solution of the open XX spin chain with nondiagonal boundary terms For generic values of the boundary parameters, the Bethe Ansatz solution is formulated in terms of Jacobian elliptic functions. We briefly review Bethe Ansatz solutions of the integrable open spin-1/2 XXZ quantum spin chain derived from functional relations obeyed by the transfer matrix at roots of unity. A Bethe Ansatz solution of the open spin-1/2 XXZ quantum spin chain with nondiagonal boundary terms has recently been proposed. www.citebase.org /cgi-bin/citations?id=oai:arXiv.org:hep-th/0110081   (1085 words)

[No title]   (Site not responding. Last check: 2007-11-03) The Bethe ansatz is a method in the theory of quantum integrable models to calculate eigenvectors for a certain family of commutative linear operators (hamiltonians of the model). One assigns the Bethe ansatz equations to a model. These facts are based on the correspondence between solutions of the Bethe ansatz equations and differential operators called the Miura opers. www.math.princeton.edu /~rahulp/04var.html   (145 words)

Citebase - Hidden Relation between Reflection Amplitudes and Thermodynamic Bethe Ansatz The conjugate momentum is quantized for the sinh-Gordon, the Bullough-Dodd, and the super sinh-Gordon models where the quantization conditions depend on the size R of the system and the reflection amplitudes. The other method is to solve the standard thermodynamic Bethe ansatz (TBA) equations for the integrable models in a perturbative series of 1/(const. Exact results are derived both for the theory defined on a pseudosphere with discrete (NS) boundary conditions and for the theory with expl... citebase.eprints.org /cgi-bin/citations?id=oai:arXiv.org:hep-th/9903134   (1222 words)

Exact solutions of the Schrödinger equation with irregular singularity -- from Mathematica Information Center We apply a general theorem about existence and structure of solutions of linear ordinary differential equations to the Schrodinger equation and obtain suitable ansatz functions and their asymptotic representations for a large class of singular potentials. Using these Ansatz functions, we work out all potentials for which the irregular singularity can be removed and replaced by a regular one. For all cases in which the singularity cannot be weakened, we calculate the most general potential for which the Schrodinger equation is solved by the Ansatz functions obtained and develop a method for finding exact solutions library.wolfram.com /infocenter/Articles/851   (151 words)

Citebase - Bethe Ansatz solution for quantum spin-1 chains with boundary terms In each case the eigenspectrum is determined by application of the coordinate Bethe Ansatz. In each case the eigenspectrum of the transfer matrix is determined by application of the algebraic Bethe Ansatz. The completeness of the Bethe ansatz equations is discussed for a system with four sites an... www.citebase.org /cgi-bin/citations?id=oai:arXiv.org:nlin/0110048   (914 words)

Discussion with Hans-Peter Duerr on the quantum Ansatz After further consideration, I have some new insights into your Ansatz I would like to share with you to see if we are seeing more or less eye to eye and if I can add anything to your very interesting point of view. Please try to make time for *this*, as a last ditch attempt on my part to convey what I feel is very important for me to convey to you. I say that as classical observers, we are far from the quantum physical world. www.geocities.com /saint7peter/DiscussionwithDuerr.html   (2470 words)

Aurora in Four Voices   (Site not responding. Last check: 2007-11-03) Catherine Asaro's novella "Aurora in Four Voices," with cover by George Krauter, introduces a new world set in the same universe she has previously explored in novels. Ansatz has perhaps one of the strangest human cultures yet imagined, blending art and science in thoroughly new ways that are both very human and, to us, very alien. Her hair was a cloud of fl curls with gold tips, and dark lashes framed her eyes--green eyes, the color of a leaf in the forest. www.sff.net /people/asaro/aurora.htp   (2236 words)

Citebase - Bethe Ansatz solution of the open XXZ chain with nondiagonal boundary terms Bethe Ansatz solution of the open XXZ chain with nondiagonal boundary terms Authors: Nepomechie, Rafael I. We propose a set of conventional Bethe Ansatz equations and a corresponding expression for the eigenvalues of the transfer matrix for the open spin-1/2 XXZ quantum spin chain with nondiagonal boundary terms, provided that the boundary parameters obey a certain linear relation. By using a set of gauge transformations, the exact solutions of the XXZ spin chain with unparallel boundary magnetic fields are derived in the framework of the algebraic Bethe ansatz. www.citebase.org /cgi-bin/citations?id=oai:arXiv.org:hep-th/0304092   (1130 words)

A factorization ansatz for a given ODE   (Site not responding. Last check: 2007-11-03) is an integer between 1 and 4 inclusive then a default ansatz is taken and is a list of unknown functions in the ansatz, which are to be solved for. constant(s) of integration, this factorization ansatz does not restrict the solution space of (20) and because of (21) the general solution is www.uni-koeln.de /REDUCE/crack/node18.html   (163 words)

On some problems of the maximum entropy ansatz   (Site not responding. Last check: 2007-11-03) On some problems of the maximum entropy ansatz Pilot calculations involving the ground quantum eigenenergy states of the quartic oscillator, the particle-in-a-box model, and the classical Maxwellian speed and energy distributions lend credence to our approach. Keywords Maximum entropy ansatz; Padé-type approximants; boundary behaviour. www.ias.ac.in /pramana/march2000/p5152.htm   (133 words)

A Redefinition of the Energy Ansatz Utilizing fundamentally new definitions for energy, potential, and scalar potential, the mass of the atomic nucleus may be considered a powerful electrostatic scalar potential, referred to as the mass potential. In this paper we have proposed major new definitions of some fundamental entities in physics, which lead to an altered perspective on spacetime and matter interaction. These definitions, which amount to a redefinition of the entire energy ansatz (beginning), imply a totally new class of nuclear interactions, where the mass of the nucleus is considered as a powerful scalar EM potential, with a directly engineerable internal Whittaker bidirectional EM wave structure. www.geocities.com /Area51/Shadowlands/9654/bearden/ansatz.html   (5021 words)

Variational ansatz for the superfluid Mott-insulator transition in optical lattices Variational ansatz for the superfluid Mott-insulator transition in optical lattices Our approach accurately gives local properties for strong and weak interactions, and it also describes the crossover from the superfluid phase to the Mott-insulator phase. J. García-Ripoll, J. Cirac, P. Zoller, C. Kollath, U. Schollwöck, and J. von Delft, "Variational ansatz for the superfluid Mott-insulator transition in optical lattices," Opt. www.opticsexpress.org /abstract.cfm?URI=OPEX-12-1-42   (596 words)

3 Einstein - Yang-Mills equations reformulated and the natural ansatz.   (Site not responding. Last check: 2007-11-03) Next: 4 Black holes solutions Up: Einstein-Yang-Mills fl holes solutions Previous: 2 3D SU(2) YM 3 Einstein - Yang-Mills equations reformulated and the natural ansatz. Contrary to the standart EYM equations, both the equations of (5) are very symmetrique and the simplest ansatz which can be found to solve them is: One can of course imagine more sophisticated ansatz where for example the two nmetrics will be conformally related but we will see that the trivial former ansatz give very rich structure. theory.gsi.de /~brindy/PUBLI/SolEYM/node3.html   (183 words)

ar-HRT-1: Main part «ansatz»   (Site not responding. Last check: 2007-11-03) General and version specific information on main part «ansatz». Main part «ansatz» is at the very heart of the solution of the partial differential equations: using the available information on the target system and the reference system it implements a finite difference scheme on largely [17, 19] arbitrary grids. It is this main part where all the physical approximations are combined to jointly define a computational model of HRT for the system at hand. tph.tuwien.ac.at /~areiner/20010924-1/4.20020414a/mp_ansatz.html   (155 words)

[No title]   (Site not responding. Last check: 2007-11-03) Spectrum and transition rates of the XX chain analyzed via Bethe ansatz. Transition rates via Bethe ansatz for the spin-1/2 planar XXZ antiferromagnet. Transition rates via Bethe ansatz for the spin-1/2 Heisenberg chain. www.phys.uri.edu /~gerhard/recpap.html   (146 words)

[No title] Today's topics: Paper on the Resolution of Thermodynamic Bethe Ansatz Equations Sparse BLAS toolkit proposal New MGNET user and request for information and help Bibliography Entries ------------------------------------------------------- Date: Tue, 01 Dec 1992 15:57:36 +0100 From: borzi@tsmi19.sissa.it Subject: Paper on the Resolution of Thermodynamic Bethe Ansatz Equations A. Borzi and A. Koubek SISSA, Scuola Internazionale Superiore di Studi Avanzati Via Beirut 2-4 34013 Trieste Italy A Multi-Grid Method for the Resolution of Thermodynamic Bethe Ansatz (TBA) Equations Abstract: We present a multi-grid algorithm in order to solve numerically the thermodynamic Bethe ansatz equations. We specifically adapt the program to compute the data of the conformal field theory reached in the ultraviolet limit. casper.cs.yale.edu /mgnet/www/mgnet/digests/V2N12   (1227 words)

4.4 A factorization ansatz for a given ODE   (Site not responding. Last check: 2007-11-03) 4.4 A factorization ansatz for a given ODE A further possible way to integrate an n'th order ODE is to decompose it into two ODEs of order k and n-k. contains n-k = 1 constant(s) of integration, this factorization ansatz does not restrict the solution space of (20) and because of (21) the general solution is www.uni-koeln.de /REDUCE/3.6/doc/crack/node18.html   (242 words)

Ein okonomischer Ansatz Der Theorie Der Intermediaren Finanzgewalten: Peter Saile: ISBN 3631446527 Ein okonomischer Ansatz Der Theorie Der Intermediaren Finanzgewalten: Peter Saile: ISBN 3631446527 Ein okonomischer Ansatz Der Theorie Der Intermediaren Finanzgewalten: Die Kirchen Als Parafisci This book is part of the Finanzwissenschaftliche Schriften, 46. www.bestwebbuys.com /3631446527   (100 words)

Bethe Ansatz and Integrable Structures The focus of the meeting is "The Bethe Ansatz and Integrable Structures" and the speakers have been asked to give overviews of their respective understanding of the subject. It is hoped that these talks will be intelligible to a wide audience. Representation Theoretic aspects of the Bethe Ansatz and Baxter's T-Q equation. www.maths.ed.ac.uk /~hwb/BAIS.html   (162 words)

Artificial Life - Ansatz for Dynamical Hierarchies - The MIT Press Artificial Life - Ansatz for Dynamical Hierarchies - The MIT Press Finally, from these examples we can infer principles about formal dynamical hierarchies. We present an ansatz for how to generate robust, higher-order emergent properties in formal dynamical systems that is based on a conjecture of a necessary minimal complexity within the fundamental interacting structures once a particular simulation framework is chosen. mitpress.mit.edu /catalog/item?sid=92A5F803-2772-479D-9F88-EB9E920870C3&ttype=6&tid=7678   (289 words)

[No title]   (Site not responding. Last check: 2007-11-03) GeneratingSet := proc(f,x,B) local n,R,V,i,c,ansatz,vars,res,g,E; n := degree(f,x); ansatz := add(c[i]*x^i,i=0..n-1); vars := {seq(c[i],i=0..n-1)}; if n E := subs(x=R, ansatz) - evala(Rem(ansatz,g,x)); E := evala({coeffs(evala(Expand(E)),{x,R})}); # Solve the equations. E := SolveTools:-Linear(E,vars); # If subfield=B then next: if degree(subs(E,ansatz),x)=0 then next fi; res := res, E od; [res], vars, ansatz end: # Factor f/(x-R) over the field K. # This is a preliminary implementation, there are tricks to compute # this much faster. www.math.fsu.edu /~hoeij/papers/subfields/Subfields   (315 words)

LIFE PATTERNS Many English-writing physicists have imported the word "Ansatz" from the German language to mean, roughly, "Let's assume that things are like this, or work like this -- to see what this buys us". Each of the strategies (or ansatzes) below formulates a hypothesis, namely, that WHAT IS CONSIDERED (BY THE GIVEN STRATEGY OR ANSATZ) FITS A PATTERN (CONFORMING WITH THAT STRATEGY or ANSATZ). If not confirmed, the STRATEGY (ANSATZ) IS TAILORED SO THAT FAILURE REVEALS SOMETHING YOU NEVER KNEW OR THOUGHT OF INVESTIGATING. members.fortunecity.com /jonhays/mathforlife.htm   (327 words)

An Ansatz on Hyper-Light Travel   (Site not responding. Last check: 2007-11-03) » Home » Research » Misc Physics Papers » An Ansatz on Hyper-Light Travel Abstract: A candidate hyper-light drive is discussed that benefits from increasing electromagnetic effects when a spaceship moves at, or faster than light speed. Tell us why you rated this way (optional): americanantigravity.com /articles/235/1/An-Ansatz-on-Hyper-Light-Travel   (208 words)

Vom Werden Europas : Der Eu ""Verfassungskonvent"" Auftrag, Ansatz, Ergebnisse   (Site not responding. Last check: 2007-11-03) Vom Werden Europas : Der Eu ""Verfassungskonvent"" Auftrag, Ansatz, Ergebnisse The victims of hurricane Katrina need your help. Add this book to your wish list www.allbookstores.com /book/3899491076   (54 words)

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