RT Journal Article
T1 Nested topological order
A1 Bombin, H.
A1 Martín-Delgado Alcántara, Miguel Ángel
AB We introduce the concept of nested topological order in a class of exact quantum lattice Hamiltonian models with non-Abelian discrete gauge symmetry. The topological order present in the models can be partially destroyed by introducing a gauge symmetry reduction mechanism. When symmetry is reduced in several islands only, this imposes boundary conditions on the rest of the system, giving rise to topological ground-state degeneracy. This degeneracy is related to the existence of topological fluxes in between islands or, alternatively, hidden charges at islands. Additionally, island deformations give rise to extension of topological quantum computation beyond quasiparticles.
PB IOP Publishing
SN 1367-2630
YR 2011
FD 2011-12-01
LK https://hdl.handle.net/20.500.14352/42822
UL https://hdl.handle.net/20.500.14352/42822
LA eng
NO © IOP Publishing Ltd and Deutsche Physikalische Gesellschaft. We acknowledge financial support from research grant QUITEMAD S2009-ESP-1594, FIS2009-10061, UCM-BS/910758 and European STREP grant PICC.
NO Unión Europea. FP7
NO Ministerio de Ciencia e Innovación (MICINN)
NO Comunidad de Madrid
NO Universidad Complutense de Madrid/Banco de Santander
NO European STREP
DS Docta Complutense
RD 27 abr 2024