Zobrazeno 1 - 10
of 162
pro vyhledávání: '"Downing, Charles"'
Autor:
Downing, Charles
This study seeks to examine whether and how firms near important emissions thresholds change their behavior to meet these targets. Emissions targets are commonly measured in two ways: absolute emissions levels and emissions intensity(absolute levels
Externí odkaz:
https://hdl.handle.net/1721.1/153742
Autor:
Saroka, Vasil A., Kong, Fanmiao, Downing, Charles A., Payod, Renebeth B., Fischer, Felix R., Sun, Xiankai, Bogani, Lapo
Publikováno v:
Phys. Rev. B 110, 195134 (2024)
The search for energy efficient materials is urged not only by the needs of modern electronics but also by emerging applications in neuromorphic computing and artificial intelligence. Currently, there exist two mechanisms for achieving dissipationles
Externí odkaz:
http://arxiv.org/abs/2310.02148
Autor:
Sturges, Thomas J., Repän, Taavi, Downing, Charles A., Rockstuhl, Carsten, Stobińska, Magdalena
Publikováno v:
New Journal of Physics 22, 103001 (2020)
We explore by theoretical means an extreme renormalisation of the eigenmodes of a dimer of dipolar meta-atoms due to strong light-matter interactions. Firstly, by tuning the height of an enclosing photonic cavity, we can lower the energy level of the
Externí odkaz:
http://arxiv.org/abs/2010.11071
Publikováno v:
ACS Photonics 7, 3401 (2020)
We present a simple quantum theory of a bosonic trimer in a triangular configuration, subject to gain and loss in an open quantum systems approach. Importantly, the coupling constants between each oscillator are augmented by complex arguments, which
Externí odkaz:
http://arxiv.org/abs/2009.06620
Autor:
Downing, Charles A., Weick, Guillaume
Publikováno v:
Proc. R. Soc. A 476, 20200530 (2020)
We present analytical expressions for the resonance frequencies of the plasmonic modes hosted in a cylindrical nanoparticle within the quasistatic approximation. Our theoretical model gives us access to both the longitudinally and transversally polar
Externí odkaz:
http://arxiv.org/abs/2007.09095
Autor:
Chang Liu1 cliu@niu.edu, Downing, Charles1 cdowning@niu.edu
Publikováno v:
Journal of Information Systems Education. Winter2024, Vol. 35 Issue 1, p48-55. 8p.
Autor:
Downing, Charles A., Weick, Guillaume
Publikováno v:
Eur. Phys. J. B 91, 253 (2018)
We present a simple model of collective plasmons in a dimerized chain of spherical metallic nanoparticles, an elementary example of a topologically nontrivial nanoplasmonic system. Taking into account long-range quasistatic dipolar interactions throu
Externí odkaz:
http://arxiv.org/abs/1803.08872
Autor:
Downing, Charles Andrew1 (AUTHOR) c.a.downing@exeter.ac.uk, Ukhtary, Muhammad Shoufie1,2 (AUTHOR)
Publikováno v:
Communications Physics. 11/4/2023, Vol. 6 Issue 1, p1-11. 11p.
Autor:
Downing, Charles Andrew
This thesis is devoted to quantum confinement effects in low-dimensional Dirac materials. We propose a variety of schemes in which massless Dirac fermions, which are notoriously diffcult to manipulate, can be trapped in a bound state. Primarily we ap
Externí odkaz:
http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.676387
Publikováno v:
J. Phys.: Condens. Matter 30, 025301 (2018)
We consider a chain of regularly-spaced spherical metallic nanoparticles, where each particle supports three degenerate localized surface plasmons. Due to the dipolar interaction between the nanoparticles, the localized plasmons couple to form extend
Externí odkaz:
http://arxiv.org/abs/1709.07770