Zobrazeno 1 - 10
of 73
pro vyhledávání: '"Danieli Carlo"'
Publikováno v:
Nanophotonics, Vol 13, Iss 21, Pp 3925-3944 (2024)
Flat bands – single-particle energy bands – in tight-binding lattices, aka networks, have attracted attention due to the presence of macroscopic degeneracies and their sensitivity to perturbations. They support compact localized eigenstates prote
Externí odkaz:
https://doaj.org/article/b40aec551bbc44a2b900a77bf0e21262
Non-Abelian evolution is a landmark in modern theoretical physics. But if non-commutative dynamics has a significant impact in the control of entanglement and transport in quantum systems is an open question. Here we propose to utilize non-Abelian Th
Externí odkaz:
http://arxiv.org/abs/2412.02429
Non-Abelian Thouless pumping intertwines adiabatic quantum control and topological quantum transport and it holds potential for quantum metrology and computing. In this work, we introduce a ladder model featuring two doubly-degenerate bands and we sh
Externí odkaz:
http://arxiv.org/abs/2409.20136
Flat bands - single-particle energy bands - in tight-binding networks have attracted attention due to the presence of macroscopic degeneracies and their extreme sensitivity to perturbations. This makes them natural candidates for emerging exotic phas
Externí odkaz:
http://arxiv.org/abs/2403.17578
Publikováno v:
Eur. Phys. J. B 97, 128 (2024)
Blending ordering within an uncorrelated disorder potential in families of 3D Lieb lattices preserves the macroscopic degeneracy of compact localized states and yields unconventional combinations of localized and delocalized phases -- as shown in Phy
Externí odkaz:
http://arxiv.org/abs/2309.04227
Publikováno v:
Chaos 34, 033107 (2024)
We use the Toda chain model to demonstrate that numerical simulation of integrable Hamiltonian dynamics using time discretization destroys integrability and induces dynamical chaos. Specifically, we integrate this model with various symplectic integr
Externí odkaz:
http://arxiv.org/abs/2308.00443
Publikováno v:
Phys. Rev. B 106, 214204 (2022)
Uncorrelated disorder in generalized 3D Lieb models gives rise to the existence of bounded mobility edges, destroys the macroscopic degeneracy of the flat bands and breaks their compactly-localized states. We now introduce a mix of order and disorder
Externí odkaz:
http://arxiv.org/abs/2209.14650
Autor:
Xia, Shiqiang, Danieli, Carlo, Zhang, Yingying, Zhao, Xingdong, Tang, Liqin, Lu, Hai, Li, Denghui, Song, Daohong, Chen, Zhigang
We propose a scheme to realize parity-time (PT) symmetric photonic Lieb lattices of ribbon shape and complex couplings, thereby demonstrating the higher-order exceptional point (EP) and Landau-Zener Bloch (LZB) oscillations in presence of a refractiv
Externí odkaz:
http://arxiv.org/abs/2108.12602
Autor:
Danieli, Carlo, Andreanov, Alexei
Nonlinear networks can host spatially compact time periodic solutions called compact breathers. Such solutions can exist accidentally (i.e. for specific nonlinear strength values) or parametrically (i.e. for any nonlinear strength). In this work we i
Externí odkaz:
http://arxiv.org/abs/2104.11458
Translationally invariant flatband Hamiltonians with interactions lead to a many-body localization transition. Our models are obtained from single particle lattices hosting a mix of flat and dispersive bands, and equipped with fine-tuned two--body in
Externí odkaz:
http://arxiv.org/abs/2104.11055