scholarly journals Pairing and superconductivity in quasi-one-dimensional flat-band systems: Creutz and sawtooth lattices

2022 ◽  
Vol 105 (2) ◽  
Author(s):  
Si Min Chan ◽  
B. Grémaud ◽  
G. G. Batrouni
Keyword(s):  
Flat Band ◽  
One Dimensional

Flat Band Slow Light With High Coupling Efficiency in One-Dimensional Grating Waveguides

2012 ◽  
Vol 24 (1) ◽  
pp. 7-9 ◽  
Author(s):  
Changjing Bao ◽  
Jin Hou ◽  
Huaming Wu ◽  
Eric Cassan ◽  
Lin Chen ◽  
...  
Keyword(s):  
Slow Light ◽  
Coupling Efficiency ◽  
Flat Band ◽  
One Dimensional

scholarly journals Flat-band dark polaritons in two-dimensional chiral-waveguide quantum electrodynamics

2021 ◽  
Vol 2015 (1) ◽  
pp. 012088
Author(s):  
Y. Marques ◽  
I. A. Shelykh ◽  
I. V. Iorsh
Keyword(s):  
Quantum Dots ◽  
Quantum Electrodynamics ◽  
Semiconductor Quantum Dots ◽  
Flat Band ◽  
Combined Effects ◽  
Strongly Correlated ◽  
Two Dimensional ◽  
One Dimensional ◽  
Flat Bands ◽  
The One

Abstract We consider a two-dimensional extension of the one-dimensional waveguide quantum electrodynamics and investigate the nature of linear excitations in two-dimensional arrays of qubits (particularly, semiconductor quantum dots) coupled to networks of chiral waveguides. We show that the combined effects of chirality and long-range photon mediated qubit-qubit interactions lead to the emergence of the two-dimensional flat bands in the polaritonic spectrum, corresponding to slow strongly correlated light.

scholarly journals Solitons in one-dimensional three-band model with a central flat band

2013 ◽  
Vol 88 (24) ◽  
Author(s):  
Gyungchoon Go ◽  
Kyeong Tae Kang ◽  
Jung Hoon Han
Keyword(s):  
Flat Band ◽  
Band Model ◽  
One Dimensional

scholarly journals Tunable zero modes and quantum interferences in flat-band topological insulators

Quantum ◽  
2021 ◽  
Vol 5 ◽  
pp. 591
Author(s):  
Juan Zurita ◽  
Charles Creffield ◽  
Gloria Platero
Keyword(s):  
Topological Insulators ◽  
Flat Band ◽  
Topological Phase ◽  
Edge States ◽  
One Dimensional ◽  
Zero Modes ◽  
Symmetry Classes ◽  
Boundary Correspondence ◽  
High Degree ◽  
Aharonov Bohm

We investigate the interplay between Aharonov-Bohm (AB) caging and topological protection in a family of quasi-one-dimensional topological insulators, which we term CSSH ladders. Hybrids of the Creutz ladder and the SSH chain, they present a regime with completely flat bands, and a rich topological phase diagram, with several kinds of protected zero modes. These are reminiscent of the Creutz ladder edge states in some cases, and of the SSH chain edge states in others. Furthermore, their high degree of tunability, and the fact that they remain topologically protected even in small systems in the rungless case, due to AB caging, make them suitable for quantum information purposes. One of the ladders can belong to the BDI, AIII and D symmetry classes depending on its parameters, the latter being unusual in a non-superconducting model. Two of the models can also harbor topological end modes which do not follow the usual bulk-boundary correspondence, and are instead related to a Chern number. Finally, we propose some experimental setups to implement the CSSH ladders with current technology, focusing on the photonic lattice case.

scholarly journals Perfect localization on flat-band binary one-dimensional photonic lattices

2019 ◽  
Vol 100 (1) ◽  
Author(s):  
Gabriel Cáceres-Aravena ◽  
Rodrigo A. Vicencio
Keyword(s):  
Flat Band ◽  
One Dimensional ◽  
Photonic Lattices
Sign in / Sign up

Export Citation Format

Share Document