Readout of Parafermionic States by Transport Measurements
Publikation: Bidrag til tidsskrift › Letter › Forskning › fagfællebedømt
Dokumenter
- PhysRevLett.129.037703
Forlagets udgivne version, 2,71 MB, PDF-dokument
Recent experiments have demonstrated the possibility of inducing superconducting pairing into counterpropagating fractional quantum Hall edge modes. This paves the way for the realization of localized parafermionic modes, non-Abelian anyons that share fractional charges in a nonlocal way. We show that, for a pair of isolated parafermions, this joint degree of freedom can be read by conductance measurements across standard metallic electrodes. We propose two complementary setups. We investigate first the transport through a grounded superconductor hosting two interacting parafermions. In the low -energy limit, its conductance peaks reveal their shared fractional charge yielding a three-state telegraph noise for weak quasiparticle poisoning. We then examine the two-terminal electron conductance of a blockaded fractional topological superconductor, which displays a characteristic e/3 periodicity of its zero -bias peaks in the deep topological regime, thus signaling the presence of parafermionic modes.
Originalsprog | Engelsk |
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Artikelnummer | 037703 |
Tidsskrift | Physical Review Letters |
Vol/bind | 129 |
Udgave nummer | 3 |
Antal sider | 6 |
ISSN | 0031-9007 |
DOI | |
Status | Udgivet - 13 jul. 2022 |
Links
- https://arxiv.org/pdf/2109.02300.pdf
Indsendt manuskript
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