Zobrazeno 1 - 10
of 107
pro vyhledávání: '"Weick, Guillaume"'
Autor:
Allard, Thomas F., Weick, Guillaume
Publikováno v:
Phys. Rev. B 110, 125423 (2024)
Optical cavities are widely used to induce strong light-matter coupling and thereby enable the presence of polaritons. While polaritons are at the source of most of the observed physics, the mirrors forming the cavity may also themselves be responsib
Externí odkaz:
http://arxiv.org/abs/2407.08357
Autor:
Allard, Thomas F., Weick, Guillaume
Publikováno v:
Phys. Rev. B 108, 245417 (2023)
A dimerized chain of dipolar emitters strongly coupled to a multimode optical waveguide cavity is studied. By integrating out the photonic degrees of freedom of the cavity, the system is recast in a two-band model with an effective coupling, so that
Externí odkaz:
http://arxiv.org/abs/2305.06956
Publikováno v:
Phys. Rev. B 107, 085420 (2023)
The conductance of graphene nanoribbons and nanoconstrictions under the effect of a scanning gate microscopy tip is systematically studied. Using a scattering approach for noninvasive probes, the first- and second-order conductance corrections caused
Externí odkaz:
http://arxiv.org/abs/2211.14004
Autor:
Allard, Thomas F., Weick, Guillaume
Publikováno v:
Phys. Rev. B 106, 245424 (2022)
We study the interplay between disorder and light-matter coupling by considering a disordered one-dimensional chain of lossy dipoles coupled to a multimode optical cavity, through a microscopically derived Hamiltonian. Such a system, hosting polarito
Externí odkaz:
http://arxiv.org/abs/2207.10584
Autor:
Blaas-Anselmi, Carmen, Helluin, Félix, Jalabert, Rodolfo A., Weick, Guillaume, Weinmann, Dietmar
Publikováno v:
SciPost Phys. 12, 105 (2022)
We investigate the power dissipated by an electronic current flowing through a quantum point contact in a two-dimensional electron gas. Based on the Landauer-B\"uttiker approach to quantum transport, we evaluate the power that is dissipated on the tw
Externí odkaz:
http://arxiv.org/abs/2112.04890
Publikováno v:
Phys. Rev. B 105, 085405 (2022)
Ensembles of gold nanoparticles present a magnetic behavior which is at odds with the weakly diamagnetic response of bulk gold. In particular, an unusual ferromagnetic order has been unveiled by several experiments. Here we investigate if the combine
Externí odkaz:
http://arxiv.org/abs/2107.04508
Autor:
Allard, Thomas F., Weick, Guillaume
Publikováno v:
Phys. Rev. B 104, 125434 (2021)
We develop a quantum theory of plasmon polaritons in chains of metallic nanoparticles, describing both near- and far-field interparticle distances, by including plasmon-photon Umklapp processes. Taking into account the retardation effects of the long
Externí odkaz:
http://arxiv.org/abs/2106.14786
Publikováno v:
Phys. Rev. B 104, 245428 (2021)
While the large paramagnetic response measured in certain ensembles of metallic nanoparticles has been assigned to orbital effects of conduction electrons, the spin-orbit coupling has been pointed out as a possible origin of the anomalously large dia
Externí odkaz:
http://arxiv.org/abs/2106.10113
Autor:
Fratus, Keith R., Calonnec, Camille Le, Jalabert, Rodolfo A., Weick, Guillaume, Weinmann, Dietmar
Publikováno v:
SciPost Phys. 10, 069 (2021)
We demonstrate the emergence of classical features in electronic quantum transport for the scanning gate microscopy response in a cavity defined by a quantum point contact and a micron-sized circular reflector. The branches in electronic flow charact
Externí odkaz:
http://arxiv.org/abs/2010.12409
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