Flat band fine-tuning and its photonic applications

C Danieli, A Andreanov, D Leykam, S Flach - Nanophotonics, 2024 - degruyter.com
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 …

Aharonov-Bohm caging and inverse Anderson transition in ultracold atoms

H Li, Z Dong, S Longhi, Q Liang, D Xie, B Yan - Physical Review Letters, 2022 - APS
Aharonov-Bohm (AB) caging, a special flat-band localization mechanism, has spurred great
interest in different areas of physics. AB caging can be harnessed to explore the rich and …

One-dimensional -root topological insulators and superconductors

AM Marques, L Madail, RG Dias - Physical Review B, 2021 - APS
Square-root topology is a recently emerged subfield describing a class of insulators and
superconductors whose topological nature is only revealed upon squaring their …

Compact Topological Edge States in Flux-Dressed Graphenelike Photonic Lattices

G Cáceres-Aravena, M Nedić, P Vildoso, G Gligorić… - Physical Review Letters, 2024 - APS
Flat band lattice systems promote the appearance of perfectly compact bulk states, whereas
topology favors edge localization. In this work, we report the existence of compact …

Tunable Aharonov-Bohm cages through imaginary couplings

SM Zhang, HS Xu, L Jin - Physical Review A, 2023 - APS
The Aharonov-Bohm (AB) cage enables localized confinement with nondiffractive
propagation for arbitrary excitation. In this study, we introduce an anti-parity-time (anti-PT) …

Quantum simulation of the bosonic creutz ladder with a parametric cavity

JSC Hung, JH Busnaina, CWS Chang, AM Vadiraj… - Physical Review Letters, 2021 - APS
There has been a growing interest in realizing quantum simulators for physical systems
where perturbative methods are ineffective. The scalability and flexibility of circuit quantum …

Topological properties of subsystem-symmetry-protected edge states in an extended quasi-one-dimensional dimerized lattice

M Jangjan, MV Hosseini - Physical Review B, 2022 - APS
We theoretically investigate the topological properties of a dimerized quasi-one-dimensional
(1D) lattice comprised of multilegs (L) as well as multisublattices (R). The system has main …

Observation of inverse Anderson transitions in Aharonov-Bohm topolectrical circuits

H Wang, W Zhang, H Sun, X Zhang - Physical Review B, 2022 - APS
It is well known that Anderson transition is a disorder-induced metal-insulator transition.
Contrary to this conventional wisdom, some investigations have shown that disorders could …

Interplay and competition between disorder and flat band in an interacting Creutz ladder

T Orito, Y Kuno, I Ichinose - Physical Review B, 2021 - APS
We clarify the interplay and competition between disorder and flat band in the Creutz ladder
with interparticle interactions focusing on the system's dynamics. Without disorder, the …

Interaction-induced topological properties of two bosons in flat-band systems

G Pelegrí, AM Marques, V Ahufinger, J Mompart… - Physical Review …, 2020 - APS
In flat-band systems, destructive interference leads to the localization of noninteracting
particles and forbids their motion through the lattice. However, in the presence of …