Interference of chiral Andreev edge states

dc.contributor.author

Zhao, Lingfei

dc.contributor.author

Arnault, Ethan G

dc.contributor.author

Bondarev, Alexey

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Seredinski, Andrew

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Larson, Trevyn

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Draelos, Anne W

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Li, Hengming

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Watanabe, Kenji

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Taniguchi, Takashi

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Amet, François

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Baranger, Harold U

dc.contributor.author

Finkelstein, Gleb

dc.date.accessioned

2020-12-14T22:13:12Z

dc.date.available

2020-12-14T22:13:12Z

dc.date.issued

2020-08-01

dc.date.updated

2020-12-14T22:13:10Z

dc.description.abstract

© 2020, The Author(s), under exclusive licence to Springer Nature Limited. The search for topological excitations such as Majorana fermions has spurred interest in the boundaries between distinct quantum states. Here, we explore an interface between two prototypical phases of electrons with conceptually different ground states: the integer quantum Hall insulator and the s-wave superconductor. We find clear signatures of hybridized electron and hole states similar to chiral Majorana fermions, which we refer to as chiral Andreev edge states (CAESs). These propagate along the interface in the direction determined by the magnetic field and their interference can turn an incoming electron into an outgoing electron or hole, depending on the phase accumulated by the CAESs along their path. Our results demonstrate that these excitations can propagate and interfere over a significant length, opening future possibilities for their coherent manipulation.

dc.identifier.issn

1745-2473

dc.identifier.issn

1745-2481

dc.identifier.uri

https://hdl.handle.net/10161/21904

dc.language

en

dc.publisher

Springer Nature

dc.relation.ispartof

Nature Physics

dc.relation.isversionof

10.1038/s41567-020-0898-5

dc.subject

cond-mat.mes-hall

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cond-mat.mes-hall

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cond-mat.supr-con

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quant-ph

dc.title

Interference of chiral Andreev edge states

dc.type

Journal article

duke.contributor.orcid

Draelos, Anne W|0000-0002-9046-3193

duke.contributor.orcid

Baranger, Harold U|0000-0002-1458-2756

duke.contributor.orcid

Finkelstein, Gleb|0000-0002-0883-0741

pubs.begin-page

862

pubs.end-page

867

pubs.issue

8

pubs.organisational-group

Staff

pubs.organisational-group

Duke

pubs.organisational-group

Trinity College of Arts & Sciences

pubs.organisational-group

Physics

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Duke Institute for Brain Sciences

pubs.organisational-group

University Institutes and Centers

pubs.organisational-group

Institutes and Provost's Academic Units

pubs.publication-status

Published

pubs.volume

16

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