Zobrazeno 1 - 10
of 463
pro vyhledávání: '"Szriftgiser, P."'
Valley photonic crystals provide efficient designs for the routing of light through channels in extremely compact geometries. The topological origin of the robust transport and the specific geometries under which it can take place have been questione
Externí odkaz:
http://arxiv.org/abs/2408.10294
Autor:
Vanderhaegen, Guillaume, Szriftgiser, Pascal, Kudlinski, Alexandre, Armaroli, Andrea, Conforti, Matteo, Mussot, Arnaud, Trillo, Stefano
We show how the recurrence phenomenon characteristic of the nonlinear stage of induced modulational instability in a passive fiber is affected by forcing. An additional linear amplification, even if extremely weak, induces separatrix crossing in corr
Externí odkaz:
http://arxiv.org/abs/2403.18558
Autor:
Madani, Farid, Denis, Maxime, Szriftgiser, Pascal, Garreau, Jean Claude, Rançon, Adam, Chicireanu, Radu
Phase transitions are prevalent throughout physics, spanning thermal phenomena like water boiling to magnetic transitions in solids. They encompass cosmological phase transitions in the early universe and the transition into a quark-gluon plasma in h
Externí odkaz:
http://arxiv.org/abs/2402.06573
Autor:
Banerjee, Rimi, Kumar, Abhishek, Caiwei, Thomas Tan, Gupta, Manoj, Jia, Ridong, Szriftgiser, Pascal, Ducournau, Guillaume, Chong, Yidong, Singh, Ranjan
Valley Hall photonic crystals (VPCs) offer the potential to create topological waveguides capable of guiding light through sharp bends on a chip. They can seamlessly integrate with functional components while occupying minimal space, making them a pr
Externí odkaz:
http://arxiv.org/abs/2311.05576
In this work, we use valley-topological triangular resonators coupled to an input waveguide to evaluate the quality of the topological protection. To that purpose, we first analyze via numerical simulations the existence of backward scattering at cav
Externí odkaz:
http://arxiv.org/abs/2301.10565
Autor:
Vanderhaegen, Guillaume, Szriftgiser, Pascal, Kudlinski, Alexandre, Armaroli, Andrea, Conforti, Matteo, Mussot, Arnaud, Trillo, Stefano
We show that even small dissipation can strongly affect the Fermi-Pasta-Ulam-Tsingou recurrence phenomenon. Taking the fully nonlinear stage of modulational instability as an experimentally accessible example, we show that the linear attenuation indu
Externí odkaz:
http://arxiv.org/abs/2206.00912
Autor:
Vanderhaegen, Guillaume, Szriftgiser, Pascal, Kudlinski, Alexandre, Conforti, Matteo, Armaroli, Andrea, Mussot, Arnaud
We report the observation of the thermalization of the Fermi-Pasta-Ulam-Tsingou recurrence process in optical fibers. We show the transition from a reversible regime to an irreversible one, revealing a spectrally thermalized state. To do so, we activ
Externí odkaz:
http://arxiv.org/abs/2205.01349
Autor:
Hainaut, Clément, Clément, Jean-François, Szriftgiser, Pascal, Garreau, Jean Claude, Rançon, Adam, Chicireanu, Radu
Publikováno v:
Eur. Phys. J. D 76, 103 (2022)
Anderson localization is the ubiquitous phenomenon of inhibition of transport of classical and quantum waves in a disordered medium. In dimension one, it is well known that all states are localized, implying that the distribution of an initially narr
Externí odkaz:
http://arxiv.org/abs/2203.08495
Autor:
Cherfan, Charbel, Denis, Maxime, Bacquet, Denis, Gamot, Michel, Zemmouri, Samir, Manai, Isam, Clément, Jean-François, Garreau, Jean-Claude, Szriftgiser, Pascal, Chicireanu, Radu
We describe a compact and versatile multi-frequency laser system for laser-cooling potassium atoms, by frequency doubling a fiber-optic telecom beam ($\simeq 1534$ or $1540$~nm). Low-power fiber-based telecom lasers and components generate a single b
Externí odkaz:
http://arxiv.org/abs/2109.03864
Autor:
Redefined, AI, Gottipati, Sai Krishna, Kurandwad, Sagar, Mars, Clodéric, Szriftgiser, Gregory, Chabot, François
Involving humans directly for the benefit of AI agents' training is getting traction thanks to several advances in reinforcement learning and human-in-the-loop learning. Humans can provide rewards to the agent, demonstrate tasks, design a curriculum,
Externí odkaz:
http://arxiv.org/abs/2106.11345