About: Quantum chaos, localized states and clustering in excited spectra of Jahn-Teller models     Goto   Sponge   NotDistinct   Permalink

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  • Studovali jsme komplexní excitovaná spektra a jejich statistické charakteristiky spinového systému dvou bozonů reprezentovaného Exe a Ex(b1 +b2) modely. Pro Exe systém pro daná rotační kvantová čísla jsme zjistili koexistenci až tří oblastí spektra, dimerizované oblasti párů oscilujících hladin s dalekodosahovým uspořádáním, mřížky kinků s krátkodosahovým uspořádáním a přechodové oblasti nukleace kinků s proměnným dosahem uspořádání. Tato struktura se objeví nad určitou kritickou čarou jako funkce parametru interakce. Klastry hladin (dimerizace a trimerizace) a obcházení hladin se projeví několika (až třemi) intermitentními oblastmi mezi větvemi spekrální entropie odpovídající několika neekvivalentním minimům efektivních potenciálových jam. Zjistili jsme, že statistické rozdělení vzdáleností nejbližších hladin tohto modelu se chová jako odmocnina této vzdálenosti (s) pro malé s a jako semipoissonovské rozdělení pro velké s. Toto chování je charakteristické pro oblast přechodu mezi kovo (cs)
  • We numerically studied complex excited spectra and their statistical characteristics of spin- two boson systems represented by the E circle times e and E circle times (b(1) + b(2)) Jahn-Teller models. For the E circle times e system at particular rotation quantum numbers we found a coexistence of up to three regions of the spectra, (i) the dimerized region of long-range ordered (extended) pairs of oscillating levels, (ii) the short-range ordered (localized) %22kink lattice%22 of avoiding levels, and (iii) the intermediate region of kink nucleation with variable range of ordering. This structure appears above a certain critical line as a function of interaction strength. The level clustering (dimerization and trimerization) and level avoiding generic patterns reflect themselves in several intermittent regions between up-to three branches of spectral entropies corresponding to up-to three nonequivalent effective potential wells. We found that apart from two limiting cases of E circle times (b(1) +
  • We numerically studied complex excited spectra and their statistical characteristics of spin- two boson systems represented by the E circle times e and E circle times (b(1) + b(2)) Jahn-Teller models. For the E circle times e system at particular rotation quantum numbers we found a coexistence of up to three regions of the spectra, (i) the dimerized region of long-range ordered (extended) pairs of oscillating levels, (ii) the short-range ordered (localized) %22kink lattice%22 of avoiding levels, and (iii) the intermediate region of kink nucleation with variable range of ordering. This structure appears above a certain critical line as a function of interaction strength. The level clustering (dimerization and trimerization) and level avoiding generic patterns reflect themselves in several intermittent regions between up-to three branches of spectral entropies corresponding to up-to three nonequivalent effective potential wells. We found that apart from two limiting cases of E circle times (b(1) + (en)
Title
  • Quantum chaos, localized states and clustering in excited spectra of Jahn-Teller models
  • Quantum chaos, localized states and clustering in excited spectra of Jahn-Teller models (en)
  • Kvantový chaos, lokalizované stavy a klastry v excitovaných spekrech Jahn-Tellerových modelů. (cs)
skos:prefLabel
  • Quantum chaos, localized states and clustering in excited spectra of Jahn-Teller models
  • Quantum chaos, localized states and clustering in excited spectra of Jahn-Teller models (en)
  • Kvantový chaos, lokalizované stavy a klastry v excitovaných spekrech Jahn-Tellerových modelů. (cs)
skos:notation
  • RIV/61989592:15310/07:00004563!RIV08-GA0-15310___
http://linked.open.../vavai/riv/strany
  • 32-38
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • P(GA202/06/0396)
http://linked.open...iv/cisloPeriodika
  • 16
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
http://linked.open.../riv/druhVysledku
http://linked.open...iv/duvernostUdaju
http://linked.open...titaPredkladatele
http://linked.open...dnocenehoVysledku
  • 446168
http://linked.open...ai/riv/idVysledku
  • RIV/61989592:15310/07:00004563
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • quantum chaos; Jahn-Teller system; spin-boson models (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...odStatuVydavatele
  • NL - Nizozemsko
http://linked.open...ontrolniKodProRIV
  • [0F53021C61A5]
http://linked.open...i/riv/nazevZdroje
  • Journal of Molecular Structure
http://linked.open...in/vavai/riv/obor
http://linked.open...ichTvurcuVysledku
http://linked.open...cetTvurcuVysledku
http://linked.open...vavai/riv/projekt
http://linked.open...UplatneniVysledku
http://linked.open...v/svazekPeriodika
  • 838
http://linked.open...iv/tvurceVysledku
  • Majerníková, Eva
  • Shpyrko, Serhiy
issn
  • 0022-2860
number of pages
http://localhost/t...ganizacniJednotka
  • 15310
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