From the Hubbard model to a systematic l
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Christoph BrΓΌgger; Florian KΓ€mpfer; Markus Moser; Michele Pepe; Uwe-Jens Wiese
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Article
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2007
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Elsevier Science
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English
β 106 KB
The low-energy physics of antiferromagnets is governed by their Goldstone bosons -the magnons -and it is described by a lowenergy effective field theory. In analogy to baryon chiral perturbation theory, we construct the effective field theory for magnons and holes in an antiferromagnet. It is a syst