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arxiv: 0807.2713 · v2 · pith:QEUNABD5new · submitted 2008-07-17 · 🧮 math-ph · cond-mat.dis-nn· hep-ph· hep-th· math.MP

Super Spin-Charge Separation for class A, C, and D disorder

classification 🧮 math-ph cond-mat.dis-nnhep-phhep-thmath.MP
keywords disorderedfixedseparationspin-chargesuperalgebraarisecases
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We prove versions of super spin-charge separation for all three of the symmetry groups SU(N), Sp(2N), and SO(N) of disordered Dirac fermions in 2+1 dimensions, which involve the supercurrent-algebras gl (1|1)_{N}, osp(2|2)_{-2N}, and osp(2|2)_N respectively. For certain restricted classes of disordered potentials, the latter supercurrent algebra based conformal field theories can arise as non-trivial low energy fixed points. For all cases with such a fixed point, we compute the density of states exponents as a function of N.

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