The study explores the characterization of ∆T noise auto-correlation in a 1D metal/insulator/superconductor junction, highlighting the impact of Andreev reflection. The investigation reveals that ∆T thermal-noise is always higher than ∆T shot-noise, establishing a general bound independent of barrier strength. In the transparent limit, where Andreev reflection is perfect, ∆T noise in NIS junctions is doubled compared to NIN junctions due to enhanced thermal-noise contributions. The study also discusses the behavior of quantum noise and its relation to temperature gradient and barrier strength.
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by Tusaradri Mo... um arxiv.org 03-19-2024
https://arxiv.org/pdf/2403.10990.pdfTiefere Fragen