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arXiv · 0711.3906

Low energy properties of non-perturbative quantum systems: a space reduction approach

Tarek Khalil·Jean Richert
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Abstract

We propose and test a renormalization procedure which acts in Hilbert space. We test its efficiency on strongly correlated quantum spin systems by working out and analyzing the low-energy spectral properties of frustrated quantum spin systems in different parts of the phase diagram and in the neighbourhood of quantum critical points.

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Tarek Khalil, Jean Richert. 2007-11-25. Low energy properties of non-perturbative quantum systems: a space reduction approach. https://doi.org/10.1016/j.physleta.2007.11.044

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