Artificial flat band systems: from lattice models to experiments
By D. Leykam, Alexei Andreanov, Sergej Flach. 2018
583 citations recorded by the source corpus.
Abstract Certain lattice wave systems in translationally invariant settings have one or more spectral bands that are strictly flat or independent of momentum in the tight binding approximation, arising from either internal symmetries or fine-tuned coupling. These flat bands display remarkable strongly interacting phases of matter. Originally considered as a theoretical convenience useful for obtaining exact analytical solutions of ferromagnetism, flat bands have now been observed in a variety of settings, ranging from electronic systems to ultracold atomic gases and photonic devices. Here we review the design and implementation of flat bands and chart future directions of this exciting field. Graphical Abstract
Subfields: Atomic and Molecular Physics, and Optics, Condensed Matter Physics, Statistical and Nonlinear Physics
View Paper: https://www.semanticscholar.org/paper/aa93dec8bf91542f9ede0e1ba694546ee955638a
How researchers see this paper
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In Atomic and Molecular Physics, and Optics
- A. Amo
- P. Törmä
- S. Peotta
- Jacqueline Bloch
- Mattias Fitzpatrick
- Alicia J. Kollár
- Bogdan Andrei Bernevig
- Isabelle Sagnes
In Condensed Matter Physics
In Statistical and Nonlinear Physics
Citations in the corpus
- Type-III and Tilted Dirac Cones Emerging from Flat Bands in Photonic Orbital Graphene (2018, background): “conducting gap in Weyl semimetals [23], and they provide a new platform for the study of correlated phases with a flat band [24].”
- Hyperbolic lattices in circuit quantum electrodynamics (2018, background): “Among Euclidean lattices there are only a handful of known examples where real-space topology of the flat band allows a gap to exist [50, 51].”
- Flat bands, strange metals and the Kondo effect (2023, unknown): “3c), in which the temperature exponent 1 spans more than three orders of magnitude in temperature 49 ; the kagome metal Ni 3 In (ref.”
- Superconductivity, superfluidity and quantum geometry in twisted multilayer systems (2021, background): “Many types of lattices (line-graph lattices, split graph, Lieb, etc. [15–17]) can support flat bands which result from wavefunction interference.”