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
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