Perspective on quantifying electron localization/delocalization, non-linear optical response and vibrational analysis of 4-(dimethylamino)benzaldehyde-2,4-dinitroaniline
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Molecular Structure"
DOI: 10.1016/j.molstruc.2017.06.060
Abstract: Abstract An organic nonlinear optical material 4-(dimethylamino)benzaldehyde-2,4-dinitroaniline (DMBDNA) has been grown by slow evaporation technique. Vibrational spectral analysis has been carried out using FT Raman, FT-IR and UV–Vis spectroscopic techniques. The influence of intramolecular charge… read more here.
Keywords: benzaldehyde dinitroaniline; analysis; dimethylamino benzaldehyde; localization delocalization ... See more keywords
Entropic analysis of the localization–delocalization transition in a one-dimensional correlated lattice
Sign Up to like & getrecommendations! Published in 2020 at "Physica A: Statistical Mechanics and its Applications"
DOI: 10.1016/j.physa.2019.123350
Abstract: Abstract In this work, we apply entropic analysis to investigate and quantify the localization–delocalization transition of acoustic waves propagating in a one-dimensional binary chain. The wave propagation depends on the elasticity distribution in the chain.… read more here.
Keywords: one dimensional; delocalization; entropic analysis; localization delocalization ... See more keywords
Observation of dispersive acoustic quasicrystals
Sign Up to like & getrecommendations! Published in 2025 at "Nature Communications"
DOI: 10.1038/s41467-025-57067-3
Abstract: Moiré quasicrystals, formed by stacking periodic structures with a relative twist between them, exhibit many exotic phenomena. Their quasiperiodicity leads to effects such as light localization-delocalization transitions, superconductivity, topological states, and quasiband dispersion. However, weak… read more here.
Keywords: moir quasicrystal; observation dispersive; moir; wave propagation ... See more keywords
Localization and Delocalization of a Single Molecule in a Helium Nanodroplet.
Sign Up to like & getrecommendations! Published in 2025 at "Physical review letters"
DOI: 10.1103/lq3l-bxn7
Abstract: When embedded in superfluid helium nanodroplets, the dopant molecule exhibits either localization or delocalization behaviors that are critically determined by the spatial spread of its wave function, which in turn are influenced by the confining… read more here.
Keywords: localization delocalization; molecule; helium; nanodroplet ... See more keywords
Many-body localization and delocalization in large quantum chains
Sign Up to like & getrecommendations! Published in 2018 at "Physical Review B"
DOI: 10.1103/physrevb.98.174202
Abstract: We theoretically study the quench dynamics for an isolated Heisenberg spin chain with a random on-site magnetic field, which is one of the paradigmatic models of a many-body localization transition. We use the time-dependent variational… read more here.
Keywords: many body; body localization; delocalization large; localization delocalization ... See more keywords
Localization and delocalization of fermions in a background of correlated spins
Sign Up to like & getrecommendations! Published in 2018 at "Physical Review B"
DOI: 10.1103/physrevb.98.184204
Abstract: We study the (de)localization phenomena of one-component lattice fermions in spin backgrounds. The O(3) classical spin variables on sites fluctuate thermally through the ordinary nearest-neighbor coupling. Their complex two-component ($\mathrm{CP}{}^{1}$-Schwinger boson) representation forms a composite… read more here.
Keywords: delocalization fermions; background correlated; fermions background; localization ... See more keywords
Microscopic description of localization-delocalization transitions in BaFe2S3
Sign Up to like & getrecommendations! Published in 2018 at "Physical Review B"
DOI: 10.1103/physrevb.98.195107
Abstract: We present a microscopic description of electronic reconstruction in BaFe2S3, a system which undergoes a pressure-induced insulator-metal transition followed by a superconducting phase at 24 K. We stress the importance of multiorbital electron-electron interactions for… read more here.
Keywords: microscopic description; delocalization transitions; description; localization delocalization ... See more keywords
Correlation-induced localization
Sign Up to like & getrecommendations! Published in 2019 at "Physical Review B"
DOI: 10.1103/physrevb.99.104203
Abstract: A new paradigm of Anderson localization caused by correlations in the long-range hopping along with uncorrelated on-site disorder is considered which requires a more precise formulation of the basic localization-delocalization principles. A new class of… read more here.
Keywords: localization delocalization; correlation induced; power law; induced localization ... See more keywords
Localization-to-delocalization transition of light in frequency-tuned photonic moiré lattices.
Sign Up to like & getrecommendations! Published in 2021 at "Optics express"
DOI: 10.1364/oe.434281
Abstract: We demonstrate in a numerical manner the intriguing localization-to-delocalization transition of light in frequency-tuned photonic moiré lattices, both in the zero-order and the higher-order regimes of light waves. We present a different technique to realize… read more here.
Keywords: localization delocalization; transition; moir; transition light ... See more keywords