Browsing School of Mathematics by Author "BYKOV, DMITRI VLADIMIROVICH"
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Haldane limits via Lagrangian embeddings
BYKOV, DMITRI VLADIMIROVICH (Elsevier, 2012)In the present paper we revisit the so-called Haldane limit, i.e. a particular continuum limit, which leads from a spin chain to a sigma model. We use the coherent state formulation of the path integral to reduce the problem ...