2017/04/19 by J. A. Celis Gil, José Antonio Gil, S. Gomez P. +1 · 10 citations
Mathematics · Physics and Astronomy · #Computer science #Condensed matter physics #Cooper pair #Cross-correlation #Mathematics #Noise (video) #Physics #Physics of Superconductivity and Magnetism #Quantum and electron transport phenomena #Semiconductor Quantum Structures and Devices #Statistics #Superconductivity #cond-mat.supr-con
paper · pdf · doi:10.1016/j.ssc.2017.04.009
published in Solid State Communications 258, 25-32 (Elsevier BV)
openalex publication_date 2017/04/19 · arxiv created 2017/04/28 · openalex created_date 2017/04/28 · arxiv updated 2017/05/01 · openalex updated_date 2026/08/05
We analyze the non-local shot noise in a multi-terminal junction formed by two Normal metal leads con- nected to one superconductor. Using the cross Fano factor and the shot noise, we calculate the efficiency of the Cooper pair splitting. The method is applied to d-wave and iron based superconductors. We de- termine that the contributions to the noise cross-correlation are due to crossed Andreev reflections (CAR), elastic cotunneling, quasiparticles transmission and local Andreev reflections. In the tunneling limit, the CAR contribute positively to the noise cross-correlation whereas the other processes contribute negatively. Depending on the pair potential symmetry, the CAR are the dominant processes, giving as a result a high efficiency for Cooper pair split. We propose the use of the Fano factor to test the efficiency of a Cooper pair splitter device.