Zobrazeno 1 - 10
of 498
pro vyhledávání: '"Delplace, P"'
Autor:
Benabdesselam, Mourad, Bahout, J., Mady, Franck, Blanc, Wilfried, Hamzaoui, Hicham El, Cassez, Andy, Delplace-Baudelle, Karen, Habert, Remi, Bouwmans, Geraud, Bouazaoui, Mohamed, Capoen, Bruno
Publikováno v:
IEEE Sensors Journal, 2021, 21 (24), pp.1-8
Two rods made from sol-gel silica have been doped with Ce ions or co-doped with Ce and Tb ions respectively. First, a thermoluminescence (TL) characterization of the trapping and luminescence parameters is carried out to understand the physical mecha
Externí odkaz:
http://arxiv.org/abs/2407.12364
Autor:
Delplace, Pierre, Venaille, Antoine
Publikováno v:
Comptes Rendus. Physique, Vol 21, Iss 2, Pp 165-175 (2020)
The physics of topological insulators makes it possible to understand and predict the existence of unidirectional waves trapped along an edge or an interface. In this review, we describe how these ideas can be adapted to geophysical and astrophysical
Externí odkaz:
https://doaj.org/article/3135dbcfab5b4f26bd34adf95778582c
Topological properties of the spectrum of shallow-water waves on a rotating spherical body are established. Particular attention is paid to its spectral flow, i.e. the modes whose frequencies transit between the Rossby and inertia-gravity wavebands a
Externí odkaz:
http://arxiv.org/abs/2404.07655
Autor:
Guo, Xinxin, Jezequel, Lucien, Padlewski, Mathieu, Lissek, Hervé, Delplace, Pierre, Fleury, Romain
Nonlinear topology has been much less inquired compared to its linear counterpart. Existing advances have focused on nonlinearities of limited magnitudes and fairly homogeneous types. As such, the realizations have rarely been concerned with the requ
Externí odkaz:
http://arxiv.org/abs/2403.10590
Bulk-edge correspondence is a cornerstone in topological physics, establishing a connection between the number of unidirectional edge modes in physical space and a Chern number, an integer that counts phase singularities of the eigenmodes in paramete
Externí odkaz:
http://arxiv.org/abs/2311.18249
Autor:
Sokhen, Rabih El, Gómez-León, Álvaro, Adiyatullin, Albert F., Randoux, Stéphane, Delplace, Pierre, Amo, Alberto
Publikováno v:
Phys. Rev. Research 6, 023282 (2024)
Anomalous topological phases, where edge states coexist with topologically trivial Chern bands, can only appear in periodically driven lattices. When the driving is smooth and continuous, the bulk-edge correspondence is guaranteed by the existence of
Externí odkaz:
http://arxiv.org/abs/2311.10619
Autor:
Leclerc, Armand, Jezequel, Lucien, Perez, Nicolas, Bhandare, Asmita, Laibe, Guillaume, Delplace, Pierre
We reveal properties of global modes of linear buoyancy instability in stars, characterised by the celebrated Schwarzschild criterion, using non-Hermitian topology. We identify a ring of Exceptional Points of order 4 that originates from the pseudo-H
Externí odkaz:
http://arxiv.org/abs/2311.05944
Autor:
Jezequel, Lucien, Delplace, Pierre
Publikováno v:
SciPost Phys. 17, 060 (2024)
We propose a theory, that we call the \textit{mode-shell correspondence}, which relates the topological zero-modes localised in phase space to a \textit{shell} invariant defined on the surface forming a shell enclosing these zero-modes. We show that
Externí odkaz:
http://arxiv.org/abs/2310.05656
Topological insulators are crystalline materials that have revolutionized our ability to control wave transport. They provide us with unidirectional channels that are immune to obstacles, defects or local disorder, and can even survive some random de
Externí odkaz:
http://arxiv.org/abs/2212.04919
Stellar oscillations can be of topological origin. We reveal this deep and so-far hidden property of stars by establishing a novel parallel between stars and topological insulators. We construct an hermitian problem to derive the expression of the st
Externí odkaz:
http://arxiv.org/abs/2210.02783