Vertices for correlated electron systems with anomalous propagators

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F14%3A00439113" target="_blank" >RIV/68378271:_____/14:00439113 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Vertices for correlated electron systems with anomalous propagators

Original language 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.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

BM - Solid-state physics and magnetism

OECD FORD branch

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Project

<a href="/en/project/GCP204%2F11%2FJ042" target="_blank" >GCP204/11/J042: Supercurrent and ac-Josephson effect in unconventional nanoscopic junctions</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2014

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

ScienceJet

ISSN

2278-3393

e-ISSN

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Volume of the periodical

3

Issue of the periodical within the volume

1

Country of publishing house

IN - INDIA

Number of pages

10

Pages from-to

"66-1"-"66-10"

UT code for WoS article

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EID of the result in the Scopus database

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