Noise Correlations in Three-Terminal Diffusive Superconductor-Normal   Metal-Superconductor Nanostructures
  We present measurements of current noise and cross-correlations in three-terminal Superconductor-Normal metal-Superconductor (S-N-S) nanostructures that are potential solid-state entanglers thanks to Andreev reflections at the N-S interfaces. The noise correlation measurements spanned from the regime where electron-electron interactions are relevant to the regime of Incoherent Multiple Andreev Reflection (IMAR). In the latter regime, negative cross-correlations are observed in samples with closely-spaced junctions. 
B. Kaviraj, O. Coupiac, H. Courtois and F. Lefloch
cond-mat.mes-hall cond-mat.supr-con