Martin Greiter
Mapping of Parent Hamiltonians
From Abelian and non-Abelian Quantum Hall States to Exact Models of Critical Spin Chains
Gebonden Engels 2011 2011e druk 9783642243837Levertijd ongeveer 9 werkdagen
Gratis verzonden
Samenvatting
This monograph introduces an exact model for a critical spin chain with arbitrary spin S, which includes the Haldane--Shastry model as the special case S=1/2. While spinons in the Haldane-Shastry model obey abelian half-fermi statistics, the spinons in the general model introduced here obey non-abelian statistics. This manifests itself through topological choices for the fractional momentum spacings. The general model is derived by mapping exact models of quantized Hall states onto spin chains. The book begins with pedagogical review of all the relevant models including the non-abelian statistics in the Pfaffian Hall state, and is understandable to every student with a graduate course in quantum mechanics.
Specificaties
ISBN13:9783642243837
Taal:Engels
Bindwijze:gebonden
Aantal pagina's:194
Uitgever:Springer Berlin Heidelberg
Druk:2011
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Inhoudsopgave
Introduction and summary.- Three models and a ground state.- From a Laughlin state to the Haldane-Shastry model.- From a bosonic Pfaffian state to an S = 1 spin chain.- Generalization to arbitrary spin S.- Conclusions and unresolved issues.- Spherical coordinates.- Fourier sums for one-dimensional lattices.- Angular momentum algebra.- Tensor decompositions of spin operators.
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