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Statements

Subject Item
n2:RIV%2F00216208%3A11320%2F12%3A10126506%21RIV13-GA0-11320___
rdf:type
skos:Concept n10:Vysledek
rdfs:seeAlso
http://dx.doi.org/10.1038/srep00374
dcterms:description
Studies of non-equilibrium current fluctuations enable assessing correlations involved in quantum transport through nanoscale conductors. They provide additional information to the mean current on charge statistics and the presence of coherence, dissipation, disorder, or entanglement. Shot noise, being a temporal integral of the current autocorrelation function, reveals dynamical information. In particular, it detects presence of non-Markovian dynamics, i.e., memory, within open systems, which has been subject of many current theoretical studies. We report on low-temperature shot noise measurements of electronic transport through InAs quantum dots in the Fermi-edge singularity regime and show that it exhibits strong memory effects caused by quantum correlations between the dot and fermionic reservoirs. Our work, apart from addressing noise in archetypical strongly correlated system of prime interest, discloses generic quantum dynamical mechanism occurring at interacting resonant Fermi edges. Studies of non-equilibrium current fluctuations enable assessing correlations involved in quantum transport through nanoscale conductors. They provide additional information to the mean current on charge statistics and the presence of coherence, dissipation, disorder, or entanglement. Shot noise, being a temporal integral of the current autocorrelation function, reveals dynamical information. In particular, it detects presence of non-Markovian dynamics, i.e., memory, within open systems, which has been subject of many current theoretical studies. We report on low-temperature shot noise measurements of electronic transport through InAs quantum dots in the Fermi-edge singularity regime and show that it exhibits strong memory effects caused by quantum correlations between the dot and fermionic reservoirs. Our work, apart from addressing noise in archetypical strongly correlated system of prime interest, discloses generic quantum dynamical mechanism occurring at interacting resonant Fermi edges.
dcterms:title
Strong quantum memory at resonant Fermi edges revealed by shot noise Strong quantum memory at resonant Fermi edges revealed by shot noise
skos:prefLabel
Strong quantum memory at resonant Fermi edges revealed by shot noise Strong quantum memory at resonant Fermi edges revealed by shot noise
skos:notation
RIV/00216208:11320/12:10126506!RIV13-GA0-11320___
n10:predkladatel
n11:orjk%3A11320
n3:aktivita
n21:P
n3:aktivity
P(GCP204/11/J042)
n3:cisloPeriodika
duben
n3:dodaniDat
n4:2013
n3:domaciTvurceVysledku
n6:7005865 Roszak, Katarzyna
n3:druhVysledku
n19:J
n3:duvernostUdaju
n5:S
n3:entitaPredkladatele
n12:predkladatel
n3:idSjednocenehoVysledku
171759
n3:idVysledku
RIV/00216208:11320/12:10126506
n3:jazykVysledku
n17:eng
n3:klicovaSlova
dynamics; metals; singularities
n3:klicoveSlovo
n7:dynamics n7:singularities n7:metals
n3:kodStatuVydavatele
GB - Spojené království Velké Británie a Severního Irska
n3:kontrolniKodProRIV
[EE7C3979A7F1]
n3:nazevZdroje
SCIENTIFIC REPORTS
n3:obor
n8:BM
n3:pocetDomacichTvurcuVysledku
2
n3:pocetTvurcuVysledku
6
n3:projekt
n16:GCP204%2F11%2FJ042
n3:rokUplatneniVysledku
n4:2012
n3:svazekPeriodika
2
n3:tvurceVysledku
Novotný, Tomáš Roszak, Katarzyna Maire, N. Hohls, F. Haug, R. J. Ubbelohde, N.
n3:wos
000303167300001
s:issn
2045-2322
s:numberOfPages
5
n20:doi
10.1038/srep00374
n14:organizacniJednotka
11320