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research article
The Energy Density in the Planar Ising Model
2013
We study the critical Ising model on the square lattice in bounded simply connected domains with + and free boundary conditions. We relate the energy density of the model to a discrete fermionic spinor and compute its scaling limit by discrete complex analysis methods. As a consequence, we obtain a simple exact formula for the scaling limit of the energy field one- point function in terms of the hyperbolic metric. This confirms the predictions originating in physics, but also provides a higher precision.
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The energy density in the planar Ising model.pdf
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