Spectral distribution and wave function of electrons emitted from a single-particle source in the quantum Hall regime
(2012) In Physical Review B (Condensed Matter and Materials Physics) 85(7).- Abstract
- We investigate theoretically a scheme for spectroscopy of electrons emitted by an on-demand single-particle source. The total system, with an electron turnstile source and a single-level quantum dot spectrometer, is implemented with edge states in a conductor in the quantum Hall regime. Employing a Floquet scattering approach, the source and the spectrometer are analyzed within a single theoretical framework. The nonequilibrium distribution of the emitted electrons is analyzed via the direct current at the dot spectrometer. In the adiabatic and intermediate source frequency regimes, the distribution is found to be strongly peaked around the active resonant level of the turnstile. At high frequencies the distribution is split up into a set... (More)
- We investigate theoretically a scheme for spectroscopy of electrons emitted by an on-demand single-particle source. The total system, with an electron turnstile source and a single-level quantum dot spectrometer, is implemented with edge states in a conductor in the quantum Hall regime. Employing a Floquet scattering approach, the source and the spectrometer are analyzed within a single theoretical framework. The nonequilibrium distribution of the emitted electrons is analyzed via the direct current at the dot spectrometer. In the adiabatic and intermediate source frequency regimes, the distribution is found to be strongly peaked around the active resonant level of the turnstile. At high frequencies the distribution is split up into a set of fringes, resulting from the interplay of resonant transport through the turnstile and absorption or emission of individual Floquet quanta. For ideal source operation, with exactly one electron emitted per cycle, an expression for the single-electron wave function is derived. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/2390956
- author
- Battista, Francesca LU and Samuelsson, Peter LU
- organization
- publishing date
- 2012
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Physical Review B (Condensed Matter and Materials Physics)
- volume
- 85
- issue
- 7
- article number
- 075428
- publisher
- American Physical Society
- external identifiers
-
- wos:000300660400004
- scopus:84857733989
- ISSN
- 1098-0121
- DOI
- 10.1103/PhysRevB.85.075428
- language
- English
- LU publication?
- yes
- id
- 4cd964fe-bb72-4029-8e34-cbdcffe0772a (old id 2390956)
- date added to LUP
- 2016-04-01 13:04:46
- date last changed
- 2023-09-30 20:37:05
@article{4cd964fe-bb72-4029-8e34-cbdcffe0772a,
abstract = {{We investigate theoretically a scheme for spectroscopy of electrons emitted by an on-demand single-particle source. The total system, with an electron turnstile source and a single-level quantum dot spectrometer, is implemented with edge states in a conductor in the quantum Hall regime. Employing a Floquet scattering approach, the source and the spectrometer are analyzed within a single theoretical framework. The nonequilibrium distribution of the emitted electrons is analyzed via the direct current at the dot spectrometer. In the adiabatic and intermediate source frequency regimes, the distribution is found to be strongly peaked around the active resonant level of the turnstile. At high frequencies the distribution is split up into a set of fringes, resulting from the interplay of resonant transport through the turnstile and absorption or emission of individual Floquet quanta. For ideal source operation, with exactly one electron emitted per cycle, an expression for the single-electron wave function is derived.}},
author = {{Battista, Francesca and Samuelsson, Peter}},
issn = {{1098-0121}},
language = {{eng}},
number = {{7}},
publisher = {{American Physical Society}},
series = {{Physical Review B (Condensed Matter and Materials Physics)}},
title = {{Spectral distribution and wave function of electrons emitted from a single-particle source in the quantum Hall regime}},
url = {{https://lup.lub.lu.se/search/files/3146752/2969497.pdf}},
doi = {{10.1103/PhysRevB.85.075428}},
volume = {{85}},
year = {{2012}},
}