We use the Landauer-Büttiker scattering theory for electronic transport to calculate the current cross-correlations in a voltage-biased three-terminal junction with all superconducting leads. At low bias voltage, when charge transport is due to coherent multiple Andreev reflections, we find large cross-correlations compared with their normal-state value. Furthermore, depending on the parameters that characterize the properties of the scattering region between the leads, the cross-correlations can reverse their sign with respect to the case of non-interacting fermionic systems.
|Number of pages||7|
|Journal||Physica E: Low-Dimensional Systems and Nanostructures|
|Publication status||Published - 2016|
- Current noise and cross-correlations
- Multiple Andreev reflections
- Multiterminal Josephson junctions