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Characterization of 2D rational local conformal nets and its boundary conditions: the maximal case | | Marcel Bischoff
; Yasuyuki Kawahigashi
; Roberto Longo
; | | Date: |
31 Oct 2014 | | Abstract: | Let $mathcal A$ be a completely rational local M"obius covariant net on
$S^1$, which describes a set of chiral observables. We show that local M"obius
covariant nets $mathcal B_2$ on 2D Minkowski space which contain the chiral
theory $mathcal A$ are in one-to-one correspondence with Morita equivalence
classes of Q-systems in the unitary modular tensor category
$mathrm{DHR}(mathcal A)$. The M"obius covariant boundary conditions with
symmetry $mathcal A$ of such a net $mathcal B_2$ are given by the Q-systems
in the Morita equivalence class or by simple objects in the module category
modulo automorphisms of the dual category. We generalize to reducible boundary
conditions.
To establish this result we define the notion of Morita equivalence for
Q-systems (special symmetric $ast$-Frobenius algebra objects) and
non-degenerately braided subfactors. We prove a conjecture by Kong and Runkel,
namely that Rehren’s construction (generalized Longo-Rehren construction,
$alpha$-induction construction) coincides with the categorical full center.
This gives a new view and new results for the study of braided subfactors. | | Source: | arXiv, 1410.8848 | | Services: | Forum | Review | PDF | Favorites | |
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