Dissipation effects in percolating quant
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JosΓ© A. Hoyos; Thomas Vojta
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Article
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2008
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Elsevier Science
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English
β 135 KB
We study the effects of dissipation on a randomly dilute transverse-field Ising magnet at and close to the percolation threshold. For weak transverse fields, a novel percolation quantum phase transition separates a super-paramagnetic cluster phase from an inhomogeneously ordered ferromagnetic phase.