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Statements

Subject Item
n2:RIV%2F68378271%3A_____%2F14%3A00439113%21RIV15-GA0-68378271
rdf:type
skos:Concept n14:Vysledek
dcterms:description
We study effects of electron correlations in the equilibrium state with condensed singlet Cooper pairs. Anomalous propagation of elementary excitations emerges due to dynamical creation and annihilation of Cooper pairs. We use the Nambu matrix representation for the one and two-particle propagators. We analyze in detail two-particle vertex functions and show how multiple electron-hole and electron-electron scatterings can be represented via matrix Bethe-Salpeter equations. We find the corresponding Schwinger-Dyson equations determining the self-energy from the two-particle vertex in each of these scattering channels. We explicitly perform the analysis for a single impurity attached to a superconductor. Explicit analytic formulas for single-channel approximations are found for this model. We study effects of electron correlations in the equilibrium state with condensed singlet Cooper pairs. Anomalous propagation of elementary excitations emerges due to dynamical creation and annihilation of Cooper pairs. We use the Nambu matrix representation for the one and two-particle propagators. We analyze in detail two-particle vertex functions and show how multiple electron-hole and electron-electron scatterings can be represented via matrix Bethe-Salpeter equations. We find the corresponding Schwinger-Dyson equations determining the self-energy from the two-particle vertex in each of these scattering channels. We explicitly perform the analysis for a single impurity attached to a superconductor. Explicit analytic formulas for single-channel approximations are found for this model.
dcterms:title
Vertices for correlated electron systems with anomalous propagators Vertices for correlated electron systems with anomalous propagators
skos:prefLabel
Vertices for correlated electron systems with anomalous propagators Vertices for correlated electron systems with anomalous propagators
skos:notation
RIV/68378271:_____/14:00439113!RIV15-GA0-68378271
n5:aktivita
n8:P n8:I
n5:aktivity
I, P(GCP204/11/J042)
n5:cisloPeriodika
1
n5:dodaniDat
n6:2015
n5:domaciTvurceVysledku
n10:3050491 n10:9991298
n5:druhVysledku
n17:J
n5:duvernostUdaju
n11:S
n5:entitaPredkladatele
n7:predkladatel
n5:idSjednocenehoVysledku
53291
n5:idVysledku
RIV/68378271:_____/14:00439113
n5:jazykVysledku
n15:eng
n5:klicovaSlova
interacting quantum dot; superconducting leads; diagrammatic perturbation expansion; anomalous vertex functions
n5:klicoveSlovo
n9:superconducting%20leads n9:diagrammatic%20perturbation%20expansion n9:interacting%20quantum%20dot n9:anomalous%20vertex%20functions
n5:kodStatuVydavatele
IN - Indická republika
n5:kontrolniKodProRIV
[BA095432BC77]
n5:nazevZdroje
ScienceJet
n5:obor
n13:BM
n5:pocetDomacichTvurcuVysledku
2
n5:pocetTvurcuVysledku
2
n5:projekt
n16:GCP204%2F11%2FJ042
n5:rokUplatneniVysledku
n6:2014
n5:svazekPeriodika
3
n5:tvurceVysledku
Janiš, Václav Pokorný, Vladislav
s:issn
2278-3393
s:numberOfPages
10