Pregled bibliografske jedinice broj: 221066
Ultrafast dynamics and entangled and disentangled decoherence of electrons in intermediate states of two-photon photoemission from surface bands
Ultrafast dynamics and entangled and disentangled decoherence of electrons in intermediate states of two-photon photoemission from surface bands // ECOSS 23 Program/Abstracts / Wolf, Martin ; Fumagali, Paul (ur.).
Berlin, 2005. str. 130-130 (predavanje, međunarodna recenzija, sažetak, znanstveni)
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Naslov
Ultrafast dynamics and entangled and disentangled decoherence of electrons in intermediate states of two-photon photoemission from surface bands
Autori
Gumhalter, Branko
Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni
Izvornik
ECOSS 23 Program/Abstracts
/ Wolf, Martin ; Fumagali, Paul - Berlin, 2005, 130-130
Skup
ECOSS 23, European Conference on Surface Science
Mjesto i datum
Berlin, Njemačka, 04.09.2005. - 09.09.2005
Vrsta sudjelovanja
Predavanje
Vrsta recenzije
Međunarodna recenzija
Ključne riječi
surface bands; entanglement; electron decoherence
Sažetak
We discuss the effects which combinations of entangled and disentangled decoherence and transient response induce on the early decay of coherent electron-hole pairs in the intermediate states of two-photon-photoemission (2PPE) from image potential bands. We find that their interplay gives rise to deviations of the pair decay probabilities from simple exponential laws governed by independent quasiparticle lifetimes obtained in the selfenergy approaches based on the adiabatic hypothesis. Assessment of these effects for paradigmatic Cu(111) surface shows that they are most pronounced in the interval of pump-probe photon pulse delay times typical of current 2PPE experiments.
Izvorni jezik
Engleski
Znanstvena područja
Fizika
