Quasiparticle dynamics by effective [Formula: see text]-field distortion

Modeling dynamical processes of quasiparticles in low dimensional [Formula: see text]-conjugated systems is challenging due to electron-phonon coupling. We show that this interaction leads to linear potential energy terms in the lattice Lagrangian similar to a local "gravitational" field....

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Published inScientific reports Vol. 12; no. 1; p. 7967
Main Authors Cassiano, Tiago de Sousa Araújo, de Oliveira Neto, Pedro Henrique, E Silva, Geraldo Magela
Format Journal Article
LanguageEnglish
Published England 13.05.2022
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Summary:Modeling dynamical processes of quasiparticles in low dimensional [Formula: see text]-conjugated systems is challenging due to electron-phonon coupling. We show that this interaction leads to linear potential energy terms in the lattice Lagrangian similar to a local "gravitational" field. The presence of quasiparticles deforms this field in a way analogous to a low-dimension solution of general relativity. Our calculations with analytical expressions for effective [Formula: see text]-fields yield the correct band structure and deliver proper time evolution of the quasiparticle's properties. Furthermore, we report a sharp reduction in the dynamics computational time up to two orders of magnitude, a result that has major simulation implications.
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ISSN:2045-2322
DOI:10.1038/s41598-022-11832-2