Disordered dimer chains in waveguide quantum electrodynamics

Cold atoms trapped near optical fibers provide an excellent experimental setup to study single-photon propagation in periodic and disordered dimer chains (pair of atoms coupled through dipole-dipole interaction). The confinement of light in sub-wavelength fibers creates optical spin-orbit coupling which opens up the possibility of chiral photon emissions (preferential emission directions) into the waveguide [\textit{``Chiral quantum optics'', }Nature 541, 473-480 (2017)]. By considering two types of position disorders, namely the disorder in the dimer length and dimer separation, we study how dipole-dipole interaction along with the chiral photon emissions impacts the transport of photons [\textit{``Dimer chains in waveguide quantum electrodynamics}'' arXiv: 1808.10048]. This study has relevance to the area of quantum communication and to the photonic analog of many-body1D disordered models of condensed matter physics. -/abstract-