Zobrazeno 1 - 10
of 124
pro vyhledávání: '"Ravets, S."'
Thouless pumping is an emblematic manifestation of topology in physics, referring to the ability to induce a quantized transport of charge across a system by simply varying one of its parameters periodically in time. The original concept of Thouless
Externí odkaz:
http://arxiv.org/abs/2407.02627
Autor:
Jamadi, O., Real, B., Sawicki, K., Hainaut, C., Gonzalez-Tudela, A., Pernet, N., Sagnes, I., Morassi, M., Lemaitre, A., Gratiet, L. Le, Harouri, A., Ravets, S., Bloch, J., Amo, A.
The engineering of localised modes in photonic structures is one of the main targets of modern photonics. An efficient strategy to design these modes is to use the interplay of constructive and destructive interference in periodic photonic lattices.
Externí odkaz:
http://arxiv.org/abs/2112.07753
Autor:
Real, B., Zambon, N. Carlon, St-Jean, P., Sagnes, I., Lemaître, A., Gratiet, L. Le, Harouri, A., Ravets, S., Bloch, J., Amo, A.
The low sensitivity of photons to external magnetic fields is one of the major challenges for the engineering of photonic lattices with broken time-reversal symmetry. Here we show that time-reversal symmetry can be broken for microcavity polaritons i
Externí odkaz:
http://arxiv.org/abs/2107.11131
Autor:
Pernet, N., St-Jean, P., Solnyshkov, D. D., Malpuech, G., Zambon, N. Carlon, Real, B., Jamadi, O., Lemaître, A., Morassi, M., Gratiet, L. Le, Baptiste, T., Harouri, A., Sagnes, I., Amo, A., Ravets, S., Bloch, J.
Publikováno v:
Nature Physics 18, 678 (2022)
Nonlinear topological photonics is an emerging field aiming at extending the fascinating properties of topological states to the realm where interactions between the system constituents cannot be neglected. Interactions can indeed trigger topological
Externí odkaz:
http://arxiv.org/abs/2101.01038
Autor:
Real, B., Jamadi, O., Milićević, M., Pernet, N., St-Jean, P., Ozawa, T., Montambaux, G., Sagnes, I., Lemaître, A., Gratiet, L. Le, Harouri, A., Ravets, S., Bloch, J., Amo, A.
Publikováno v:
Phys. Rev. Lett. 125, 186601 (2020)
Compression dramatically changes the transport and localization properties of graphene. This is intimately related to the change of symmetry of the Dirac cone when the particle hopping is different along different directions of the lattice. In partic
Externí odkaz:
http://arxiv.org/abs/2004.03478
Autor:
St-Jean, P., Dauphin, A., Massignan, P., Real, B., Jamadi, O., Milićević, M., Lemaître, A., Harouri, A., Gratiet, L. Le, Sagnes, I., Ravets, S., Bloch, J., Amo, A.
Publikováno v:
Phys. Rev. Lett. 126, 127403 (2021)
Topological materials rely on engineering global properties of their bulk energy bands called topological invariants. These invariants, usually defined over the entire Brillouin zone, are related to the existence of protected edge states. However, fo
Externí odkaz:
http://arxiv.org/abs/2002.09528
Autor:
Goblot, V., Štrkalj, A., Pernet, N., Lado, J. L., Dorow, C., Lemaître, A., Gratiet, L. Le, Harouri, A., Sagnes, I., Ravets, S., Amo, A., Bloch, J., Zilberberg, O.
Conduction through materials crucially depends on how ordered they are. Periodically ordered systems exhibit extended Bloch waves that generate metallic bands, whereas disorder is known to limit conduction and localize the motion of particles in a me
Externí odkaz:
http://arxiv.org/abs/1911.07809
Autor:
Zambon, N. Carlon, Rodriguez, S. R. K., Lemaitre, A., Harouri, A., Gratiet, L. Le, Sagnes, I., St-Jean, P., Ravets, S., Amo, A., Bloch, J.
Publikováno v:
Phys. Rev. A 102, 023526 (2020)
We report the observation of a parametric instability in the out-of-equilibrium steady state of two coupled Kerr microresonators coherently driven by a laser. Using a resonant excitation, we drive the system into an unstable regime, where we observe
Externí odkaz:
http://arxiv.org/abs/1911.02816
Autor:
Goblot, V., Rauer, B., Vicentini, F., Boité, A. Le, Galopin, E., Lemaître, A., Gratiet, L. Le, Harouri, A., Sagnes, I., Ravets, S., Ciuti, C., Amo, A., Bloch, J.
Publikováno v:
Phys. Rev. Lett. 123, 113901 (2019)
Phase frustration in periodic lattices is responsible for the formation of dispersionless flat bands. The absence of any kinetic energy scale makes flat band physics critically sensitive to perturbations and interactions. We report here on the experi
Externí odkaz:
http://arxiv.org/abs/1905.03759
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