"2009-04-22+02:00"^^ . "0"^^ . "Correlations and disorder induced nonlocal dynamical fluctuations in metals and their alloys"@en . . . "1"^^ . . "2007-01-01+01:00"^^ . " nonlocal fluctuations" . "2015-01-22+01:00"^^ . . "0"^^ . . . . . "."@en . "http://www.isvav.cz/projectDetail.do?rowId=GA202/07/0644"^^ . "electron correlations; configurational disorder; nonlocal fluctuations; metal-insulator transition"@en . "GA202/07/0644" . . "electron correlations" . . " configurational disorder" . "2009-12-31+01:00"^^ . . . . . "15"^^ . . "15"^^ . . . . "Korelacemi a neuspo\u0159\u00E1danost\u00ED indukovan\u00E9 nelok\u00E1ln\u00ED dynamick\u00E9 fluktuace v kovech a jejich slitin\u00E1ch" . "Electron correlations and chemical (configurational) disorder cause dynamical fluctuations that hinder application of quasiclassical static approximations. Up to now quantum dynamical fluctuations in metals have been almost exclusively treated within thelocal dynamical mean-field theory. Recently we developed with J. Koloren\u010D a mean-field-like treatment of nonlocal two-particle functions. The objective of this project is an extension of this mean-field theory for two-particle functions from noninteracting disordered to strongly correleated electron systems without or with disorder. We perform this task by means of the parquet method within which we develop a numerically manageable approximation capturing the strong-coupling Kondo asymptotics from impurity models without losing the trace of Anderson localization. We gradually extend simplified parquet equations with the Kondo asymptotics from impurity to translationally invariant finite-dimensional lattice models. Disordered"@en . "Projekt byl systematicky \u0159e\u0161en ve sm\u011Bru vyt\u010Den\u00FDch c\u00EDl\u016F, kter\u00FDch bylo ve v\u0161ech p\u0159\u00EDpadech dosa\u017Eeno. V\u00FDsledky projektu jsou v\u00FDznamn\u00FDm p\u0159\u00EDsp\u011Bvkem pro rozvoj oboru."@cs . "Elektronov\u00E9 korelace a chemick\u00E1 (konfigura\u010Dn\u00ED) neuspo\u0159\u00E1danost a\u0165 u\u017E samostatn\u011B nebo spole\u010Dn\u00FDm p\u016Fsoben\u00EDm vedou na dynamick\u00E9 fluktuace, kter\u00E9 znemo\u017E\u0148uj\u00ED statick\u00FD, semiklasick\u00FD popis. Dosud byly kvantov\u00E9 dynamick\u00E9 fluktuace v kovov\u00FDch syst\u00E9mech popisov\u00E1ny prakticky v\u00FDlu\u010Dn\u011B v r\u00E1mci lok\u00E1ln\u00ED tzv. dynamick\u00E9 teorie st\u0159edn\u00EDho pole. Ned\u00E1vno jsme spole\u010Dn\u011B s J. Koloren\u010Dem roz\u0161\u00ED\u0159ili dynamickou teorii st\u0159edn\u00EDho pole na nelok\u00E1ln\u00ED dvou\u010D\u00E1sticov\u00E9 funkce. C\u00EDlem tohoto projektu je roz\u0161\u00ED\u0159it tuto teorii st\u0159edn\u00EDho pole pro nelok\u00E1ln\u00ED dvou\u010D\u00E1sticov\u00E9 funkce z neinteraguj\u00EDc\u00EDch neuspo\u0159\u00E1dan\u00FDch syst\u00E9m\u016F na syst\u00E9my s elektronov\u00FDmi korelacemi. Poj\u00EDtkem mezi neuspo\u0159\u00E1dan\u00FDmi a korelovan\u00FDmi syst\u00E9mu jsou parketov\u00E9 rovnice Parketov\u00E9 rovnice zjednodu\u0161\u00EDme do numericky zpracovateln\u00E9 podoby tak, aby byla zahrnuta Kondova asymptotika siln\u00FDch elektronov\u00FDch korelac\u00ED a nebyly potla\u010Deny efekty Andersonovy lokalizace. Postupn\u011B roz\u0161\u00ED\u0159\u00EDme zjednodu\u0161en\u00E9 parketov\u00E9 rovnice s Kondovou asymptotikou z p\u0159\u00EDm\u011Bsov\u00FDch na m\u0159\u00ED\u017Ekov\u00E9, transla\u010Dn\u011B invariantn\u00ED modely" . .