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Topological superco...
Topological superconductivity enhanced by exceptional points
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- Arouca, Rodrigo (författare)
- Uppsala universitet,Kvantmateriens teori,Annica Black-Schaffer's group
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- Cayao, Jorge, PhD, 1986- (författare)
- Uppsala universitet,Materialteori
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- Black-Schaffer, Annica M. (författare)
- Uppsala universitet,Materialteori
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(creator_code:org_t)
- American Physical Society, 2023
- 2023
- Engelska.
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Ingår i: Physical Review B. - : American Physical Society. - 2469-9950 .- 2469-9969. ; 108:6
- Relaterad länk:
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https://doi.org/10.1...
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https://uu.diva-port... (primary) (Raw object)
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Majorana zero modes (MZMs) emerge as edge states in topological superconductors and are promising for topological quantum computation, but their detection has so far been elusive. Here we show that non-Hermiticity can be used to obtain dramatically more robust MZMs. The enhanced properties appear as a result of an extreme instability of exceptional points to superconductivity, such that even a vanishingly small superconducting order parameter already opens a large energy gap, produces well-localized MZMs, and leads to strong superconducting pair correlations. Our work thus illustrates the large potential of enhancing electronic ordering, here in the form of topological superconductivity, using non-Hermitian exceptional points.
Ämnesord
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
Nyckelord
- Fysik
- Physics
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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