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  Distinguishing Majorana zero modes from impurity states through time-resolved transport

Tuovinen, R., Perfetto, E., van Leeuwen, R., Stefanucci, G., & Sentef, M. A. (2019). Distinguishing Majorana zero modes from impurity states through time-resolved transport. New Journal of Physics, 21: 103038. doi:10.1088/1367-2630/ab4ab7.

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Tuovinen_2019_New_J._Phys._21_103038.pdf (Verlagsversion), 1017KB
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Tuovinen_2019_New_J._Phys._21_103038.pdf
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Original content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.
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https://dx.doi.org/10.1088/1367-2630/ab4ab7 (Verlagsversion)
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https://arxiv.org/abs/1902.05821 (Preprint)
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 Urheber:
Tuovinen, R.1, Autor           
Perfetto, E.2, 3, Autor
van Leeuwen, R.4, Autor
Stefanucci, G.3, 5, Autor
Sentef, M. A.1, Autor           
Affiliations:
1Theoretical Description of Pump-Probe Spectroscopies in Solids, Theory Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society, ou_3012828              
2CNR-ISM, Division of Ultrafast Processes in Materials (FLASHit), ou_persistent22              
3Dipartimento di Fisica, Università di Roma Tor Vergata, ou_persistent22              
4Department of Physics, Nanoscience Center, FI-40014, University of Jyväskylä, ou_persistent22              
5INFN, Sezione di Roma Tor Vergata, ou_persistent22              

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Schlagwörter: quantum transport, topological superconductor, Majorana zero mode
 Zusammenfassung: We study time-resolved charge transport in a superconducting nanowire using time-dependent Landauer–Büttiker theory. We find that the steady-state Majorana zero-bias conductance peak emerges transiently accompanied by characteristic oscillations after a bias-voltage quench. These oscillations are suppressed for trivial impurity states (IS) that otherwise show a similar steady-state signal as the Majorana zero mode (MZM). In addition, we find that Andreev bound states or quasi-Majorana states (QMS) in the topologically trivial bulk phase can give rise to a zero-bias conductance peak, also retaining the transient properties of the MZM. Our results imply that (1) time-resolved transport may be used as a probe to distinguish between the topological MZM and trivial IS; and (2) the QMS mimic the transient signatures of the topological MZMs.

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Sprache(n): eng - English
 Datum: 2019-09-102019-06-282019-10-032019-10-16
 Publikationsstatus: Online veröffentlicht
 Seiten: -
 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
 Art der Begutachtung: Expertenbegutachtung
 Identifikatoren: DOI: 10.1088/1367-2630/ab4ab7
arXiv: 1902.05821
 Art des Abschluß: -

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Projektinformation

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Projektname : RT and MAS acknowledge funding by the DFG (Grant No. SE 2558/2-1) through the Emmy Noether program. RVL acknowledges funding from the Academy of Finland (Project No. 317139). EP and GS acknowledge EC funding through the RISE Co-ExAN (Grant No. GA644076). EP also acknowledges funding from the European Union project MaX Materials design at the eXascale H2020-EINFRA-2015-1, Grant Agreement No. 676598 and Nanoscience Foundries and Fine Analysis-Europe H2020-INFRAIA-2014-2015, Grant Agreement No. 654360. GS also acknowledges Tor Vergata University for financial support through the Mission Sustainability Project 2DUTOPI.
Grant ID : 676598
Förderprogramm : Horizon 2020 (H2020)
Förderorganisation : European Commission (EC)
Projektname : RT and MAS acknowledge funding by the DFG (Grant No. SE 2558/2-1) through the Emmy Noether program. RVL acknowledges funding from the Academy of Finland (Project No. 317139). EP and GS acknowledge EC funding through the RISE Co-ExAN (Grant No. GA644076). EP also acknowledges funding from the European Union project MaX Materials design at the eXascale H2020-EINFRA-2015-1, Grant Agreement No. 676598 and Nanoscience Foundries and Fine Analysis-Europe H2020-INFRAIA-2014-2015, Grant Agreement No. 654360. GS also acknowledges Tor Vergata University for financial support through the Mission Sustainability Project 2DUTOPI.
Grant ID : 654360
Förderprogramm : Horizon 2020 (H2020)
Förderorganisation : European Commission (EC)

Quelle 1

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Titel: New Journal of Physics
  Kurztitel : New J. Phys.
Genre der Quelle: Zeitschrift
 Urheber:
Affiliations:
Ort, Verlag, Ausgabe: Bristol : IOP Publishing
Seiten: - Band / Heft: 21 Artikelnummer: 103038 Start- / Endseite: - Identifikator: ISSN: 1367-2630
CoNE: https://pure.mpg.de/cone/journals/resource/954926913666