About: Nonlinear effects in E circle times (b(1)+b(2)) Jahn-Teller model: variational approach with excited phonon states and mode correlations

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Interplay of nonlinear and quantum effects in the ground state of the E circle times (b(1)+b(2)) Jahn-Teller model was investigated by the variational approach and exact numerical simulations. They result in the recognition of (i) the importance of the admixture of the first excited state of the displaced harmonic oscillator of the symmetric phonon mode in the ground state of the system in the self-trapping-dominated regime, and (ii) the existence of the region of localized b(1)-undisplaced oscillator states in the tunnelling-dominated regime. Effect (i) occurs owing to a significant decrease in the ground state energy on account of the overlapping contribution of the symmetric phonon mode between states of the same parity. This contribution considerably improves variational results, especially in the self-trapping-dominated regime. Close to the E circle times e limit, the nonlinear effects of two-mode correlations turn out to be effective due to the rotational symmetry of this case. In the tunnelling Interplay of nonlinear and quantum effects in the ground state of the E circle times (b(1)+b(2)) Jahn-Teller model was investigated by the variational approach and exact numerical simulations. They result in the recognition of (i) the importance of the admixture of the first excited state of the displaced harmonic oscillator of the symmetric phonon mode in the ground state of the system in the self-trapping-dominated regime, and (ii) the existence of the region of localized b(1)-undisplaced oscillator states in the tunnelling-dominated regime. Effect (i) occurs owing to a significant decrease in the ground state energy on account of the overlapping contribution of the symmetric phonon mode between states of the same parity. This contribution considerably improves variational results, especially in the self-trapping-dominated regime. Close to the E circle times e limit, the nonlinear effects of two-mode correlations turn out to be effective due to the rotational symmetry of this case. In the tunnelling (en)
Title	Nonlinear effects in E circle times (b(1)+b(2)) Jahn-Teller model: variational approach with excited phonon states and mode correlations Nonlinear effects in E circle times (b(1)+b(2)) Jahn-Teller model: variational approach with excited phonon states and mode correlations (en)
skos:prefLabel	Nonlinear effects in E circle times (b(1)+b(2)) Jahn-Teller model: variational approach with excited phonon states and mode correlations Nonlinear effects in E circle times (b(1)+b(2)) Jahn-Teller model: variational approach with excited phonon states and mode correlations (en)
skos:notation	RIV/61989592:15310/03:00001580!RIV/2004/GA0/153104/N
http://linked.open.../vavai/riv/strany	2137-2153
http://linked.open...avai/riv/aktivita	P
http://linked.open...avai/riv/aktivity	P(GA202/01/1450)
http://linked.open...iv/cisloPeriodika	13
http://linked.open...vai/riv/dodaniDat	2004
http://linked.open...aciTvurceVysledku	Majerníková, Eva
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Univerzita Palackého v Olomouci / Přírodovědecká fakulta
http://linked.open...dnocenehoVysledku	618127
http://linked.open...ai/riv/idVysledku	RIV/61989592:15310/03:00001580
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	GROUND-STATE; SUPERCONDUCTIVITY; FULLERIDES; POLARONS (en)
http://linked.open.../riv/klicoveSlovo	GROUND-STATE POLARONS SUPERCONDUCTIVITY FULLERIDES
http://linked.open...odStatuVydavatele	GB - Spojené království Velké Británie a Severního Irska
http://linked.open...ontrolniKodProRIV	[9C4A5975CD9E]
http://linked.open...i/riv/nazevZdroje	Journal of Physics - Condensed Matter
http://linked.open...in/vavai/riv/obor	BE
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	2 (xsd:int)
http://linked.open...ocetUcastnikuAkce	0 (xsd:int)
http://linked.open...nichUcastnikuAkce	0 (xsd:int)
http://linked.open...vavai/riv/projekt	Quantum fluctuations in nonlinear lattice electron-phonon models in one dimension
http://linked.open...UplatneniVysledku	2003
http://linked.open...v/svazekPeriodika	15
http://linked.open...iv/tvurceVysledku	Majerníková, Eva Shpyrko, S.
issn	0953-8984
number of pages	17 (xsd:int)
http://localhost/t...ganizacniJednotka	15310

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