Abstract
Domain walls between superconducting and magnetic regions placed on top of a topological insulator support transport channels for Majorana fermions. We propose to study noise correlations in a Hanbury Brown-Twiss type interferometer and find three signatures of the Majorana nature of the channels. First, the average charge current in the outgoing leads vanishes. Furthermore, we predict an anomalously large shot noise in the output ports for a vanishing average current signal. Adding a quantum point contact to the setup, we find a surprising absence of partition noise which can be traced back to the Majorana nature of the carriers.
| Original language | English |
|---|---|
| Article number | 136403 |
| Journal | Physical Review Letters |
| Volume | 107 |
| Issue number | 13 |
| DOIs | |
| Publication status | Published - 2011 Sep 23 |
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ASJC Scopus subject areas
- Physics and Astronomy(all)
Cite this
Interferometric and noise signatures of Majorana fermion edge states in transport experiments. / Strübi, Grégory; Belzig, Wolfgang; Choi, Mahn-Soo; Bruder, C.
In: Physical Review Letters, Vol. 107, No. 13, 136403, 23.09.2011.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Interferometric and noise signatures of Majorana fermion edge states in transport experiments
AU - Strübi, Grégory
AU - Belzig, Wolfgang
AU - Choi, Mahn-Soo
AU - Bruder, C.
PY - 2011/9/23
Y1 - 2011/9/23
N2 - Domain walls between superconducting and magnetic regions placed on top of a topological insulator support transport channels for Majorana fermions. We propose to study noise correlations in a Hanbury Brown-Twiss type interferometer and find three signatures of the Majorana nature of the channels. First, the average charge current in the outgoing leads vanishes. Furthermore, we predict an anomalously large shot noise in the output ports for a vanishing average current signal. Adding a quantum point contact to the setup, we find a surprising absence of partition noise which can be traced back to the Majorana nature of the carriers.
AB - Domain walls between superconducting and magnetic regions placed on top of a topological insulator support transport channels for Majorana fermions. We propose to study noise correlations in a Hanbury Brown-Twiss type interferometer and find three signatures of the Majorana nature of the channels. First, the average charge current in the outgoing leads vanishes. Furthermore, we predict an anomalously large shot noise in the output ports for a vanishing average current signal. Adding a quantum point contact to the setup, we find a surprising absence of partition noise which can be traced back to the Majorana nature of the carriers.
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UR - http://www.scopus.com/inward/citedby.url?scp=80053198423&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.107.136403
DO - 10.1103/PhysRevLett.107.136403
M3 - Article
C2 - 22026879
AN - SCOPUS:80053198423
VL - 107
JO - Physical Review Letters
JF - Physical Review Letters
SN - 0031-9007
IS - 13
M1 - 136403
ER -