Publications

Papers

2020

[23] C. A. Downing, D. Zueco, and L. Martín-Moreno

Chiral current circulation and PT symmetry in a trimer of oscillators

ACS Photonics XXX, YYY (2020)

[22] T. J. Sturges, T. Repän, C. A. Downing, C. Rockstuhl and M. Stobińska

Extreme renormalisations of dimer eigenmodes by strong light-matter coupling

New J. Phys. 22, 103001 (2020)

[21] C. A. Downing and L. Martín-Moreno

Polaritonic Tamm states induced by cavity photons

Nanophotonics XXX YYY (2020)

[20] C. A. Downing, J. C. López Carreño, A. I. Fernández-Domínguez and E. del Valle

Asymmetric coupling between two quantum emitters

Phys. Rev. A 102, 013723 (2020)

2019

[19] C. A. Downing, T. J. Sturges, G. Weick, M. Stobińska and L. Martín-Moreno

Topological phases of polaritons in a cavity waveguide

Phys. Rev. Lett. 123, 217401 (2019)

[18] C. A. Downing and M. E. Portnoi

Zero-energy vortices in Dirac materials

Phys. Status Solidi B 256, 1800584 (2019)

[17] C. A. Downing, J. C. López Carreño, F. P. Laussy, E. del Valle and A. I. Fernández-
Domínguez

Quasichiral interactions between quantum emitters at the nanoscale

Phys. Rev. Lett. 122, 057401 (2019)

2018

[16] C. A. Downing and G. Weick

Topological plasmons in dimerized chains of nanoparticles: robustness against longrange
quasistatic interactions and retardation effects

Eur. Phys. J. B 91, 253 (2018)

[15] C. A. Downing, E. Mariani and G. Weick

Retardation effects on the dispersion and propagation of plasmons in metallic nanoparticle
chains

J. Phys.: Condens. Matter 30, 025301 (2018)

2017

[14] C. A. Downing and M. E. Portnoi

Bielectron vortices in two-dimensional Dirac semimetals

Nat. Commun. 8, 897 (2017)

[13] C. A. Downing, E. Mariani and G. Weick

Radiative shifts in nanoplasmonic dimers

Phys. Rev. B 96, 155421 (2017)

[12] C. A. Downing and M. E. Portnoi

Localization of massless Dirac particles via spatial modulations of the Fermi velocity

J. Phys.: Condens. Matter 29, 315301 (2017)

[11] C. A. Downing and G. Weick

Topological collective plasmons in bipartite chains of metallic nanoparticles

Phys. Rev. B 95, 125426 (2017)

[10] C. A. Downing

Two-electron atom with a screened interaction

Phys. Rev. A 95, 022105 (2017)

2016

[9] A. Brandstetter-Kunc, G. Weick, C. A. Downing, D. Weinmann and R. A. Jalabert

Nonradiative limitations to plasmon propagation in chains of metallic nanoparticles

Phys. Rev. B 94, 205432 (2016)

[8] C. A. Downing, M. G. Robinson and M. E. Portnoi

Nanohelices as superlattices: Bloch oscillations and electric dipole transitions

Phys. Rev. B 94, 155306 (2016)

[7] C. A. Downing and M. E. Portnoi

Massless Dirac fermions in two dimensions: Confinement in nonuniform magnetic
fields

Phys. Rev. B 94, 165407 (2016)

[6] C. A. Downing and M. E. Portnoi

Magnetic quantum dots and rings in two-dimensions

Phys. Rev. B 94, 045430 (2016)

2015

[5] C. A. Downing, A. R. Pearce, R. J. Churchill and M. E. Portnoi

Optimum traps in graphene

Phys. Rev. B 92, 165401 (2015)

2014

[4] C. A. Downing and M. E. Portnoi

One-dimensional Coulomb problem in Dirac materials

Phys. Rev. A 90, 052116 (2014)

2013

[3] C. A. Downing

On a solution of the Schrödinger equation with a hyperbolic double-well potential

J. Math. Phys. 54, 072101 (2013)

2012

[2] D. A. Stone, C. A. Downing and M. E. Portnoi

Searching for confined modes in graphene channels: The variable phase method

Phys. Rev. B 86, 075464 (2012)

2011

[1] C. A. Downing, D. A. Stone and M. E. Portnoi

Zero-energy states in graphene quantum dots and rings

Phys. Rev. B 84, 155437 (2011)

Conference publications

[3] C. A. Downing and M. E. Portnoi

Trapping charge carriers in low-Dimensional Dirac materials

Int. J. Nanosci. 18, 1940001 (2019)

[2] T. P. Collier, A. M. Alexeev, C. A. Downing, O. V. Kibis and M. E. Portnoi

Terahertz optoelectronics of quantum rings and nanohelices

Semiconductors 52, 1813 (2018)

[1] M. E. Portnoi, C. A. Downing, R. R. Hartmann and I. A. Shelykh

Excitons and interband terahertz transitions in narrow-gap carbon nanotubes

IEEE Xplore International Conference on Electromagnetics in Advanced Applications,
231-234, (2013)

Book chapters

[2] T. P. Collier, V. A Saroka, C. A. Downing, A. M. Alexeev, R. R. Hartmann and
M. E. Portnoi

Terahertz applications of non-simply-connected and helical nanostructures

Fundamental and Applied Nano-Electromagnetics II 

[1] C. A. Downing, M. G. Robinson and M. E. Portnoi

Electromagnetic properties of nanohelices

Fundamental and Applied Nano-Electromagnetics