Open AccessNearly complete survival of an entangled biphoton through bound states in continuum in disordered photonic lattices
Author(s) -
Hua Li Chen,
Gang Wang,
Ray-Kuang Lee
Publication year - 2018
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.26.033205
Subject(s) - physics , photonics , photon , photonic crystal , quantum mechanics , quantum , bound state , quantum optics , spontaneous parametric down conversion , antisymmetric relation , photon entanglement , lattice (music) , quantum entanglement , condensed matter physics , mathematical physics , acoustics
Bound states in the continuum (BICs) of periodic lattices have been the recent focus in a variety of photonic nanostructures. Motivated by the recent results about the photons evolving in BIC structures, we investigate the quantum decay of entangled biphotons through disordered photonic lattices. We report that the persistence of bound states in disordered photonic lattices leads to an interplay between the BIC and disorder-induced Anderson localized states. We reveal a novel effect resulting from such an interplay: a nearly complete quantum survival for the entangled biphoton respecting the antisymmetric exchange symmetry. This is in contrast to the complete vanishment in a periodic photonic lattice.