dual Ising model

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• Square-lattice Ising model — The two dimensional square lattice Ising model was solved by Lars Onsager in 1944 for the special case that the external field H = 0. The general case for H eq 0 has yet to be found.Consider the 2D Ising model on a square lattice Lambda with N… …   Wikipedia

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• Kramers-Wannier duality — The Kramers Wannier duality is a symmetry in statistical physics. It relates the free energy of a two dimensional square lattice Ising model at a low temperature to that of another Ising model at a high temperature. It was discovered by Hendrik… …   Wikipedia

• Virasoro algebra — In mathematics, the Virasoro algebra (named after the physicist Miguel Angel Virasoro) is a complex Lie algebra, given as a central extension of the complex polynomial vector fields on the circle, and is widely used in string theory.DefinitionThe …   Wikipedia

• Phase transition — This diagram shows the nomenclature for the different phase transitions. A phase transition is the transformation of a thermodynamic system from one phase or state of matter to another. A phase of a thermodynamic system and the states of matter… …   Wikipedia

• S-duality — In theoretical physics, S duality (also a strong weak duality) is an equivalence of two quantum field theories, string theories, or M theory. An S duality transformation maps the states and vacua with coupling constant g in one theory to states… …   Wikipedia

• List of numerical analysis topics — This is a list of numerical analysis topics, by Wikipedia page. Contents 1 General 2 Error 3 Elementary and special functions 4 Numerical linear algebra …   Wikipedia

• Álgebra de Virasoro — El álgebra de Virasoro es una forma de álgebra de Lie compleja, dada como extensión central del campo vectorial de los polinomios complejos sobre la circunferencia unitaria; esta álgebra toma su nombre del físico argentino Miguel Ángel Virasoro.… …   Wikipedia Español

• Quantum chromodynamics — Standard model of particle physics Standard Model …   Wikipedia

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• Gauge theory — For a generally accessible and less technical introduction to the topic, see Introduction to gauge theory. In physics, a gauge theory is a type of field theory in which the Lagrangian is invariant under a continuous group of local transformations …   Wikipedia