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Chiral bound states in the continuum

AuthorsMur-Petit, Jordi ; Molina, Rafael A.
Issue Date2014
PublisherAmerican Physical Society
CitationPhysical Review B 90: 035434 (2014)
AbstractWe present a distinct mechanism for the formation of bound states in the continuum (BICs). In chiral quantum systems, there appear zero-energy states in which the wave function has finite amplitude only in one of the subsystems defined by the chiral symmetry. When the system is coupled to leads with a continuum energy band, part of these states remain bound. We derive some algebraic rules for the number of these states depending on the dimensionality and rank of the total Hamiltonian. We examine the transport properties of such systems including the appearance of Fano resonances in some limiting cases. Finally, we discuss experimental setups based on microwave dielectric resonators and atoms in optical lattices where these predictions can be tested. © 2014 American Physical Society.
Description9 pags. ; 8 figs. ; PACS number(s): 73.63.−b, 05.60.Gg, 42.70.Qs, 37.10.Gh
Identifiersdoi: 10.1103/PhysRevB.90.035434
issn: 1550-235X
Appears in Collections:(CFMAC-IEM) Artículos
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