Elementary Andreev Processes in a Driven Superconductor-Normal Metal Contact
arXiv:1508.07039 · doi:10.1016/j.physe.2015.08.036
Abstract
We investigate the full counting statistics of a voltage-driven normal metal(N)-superconductor(S) contact. In the low-bias regime below the superconducting gap, the NS contact can be mapped onto a purely normal contact, albeit with doubled voltage and counting fields. Hence in this regime the transport characteristics can be obtained by the corresponding substitution of the normal metal results. The elementary processes are single Andreev transfers and electron- and hole-like Andreev transfers. Considering Lorentzian voltage pulses we find an optimal quantization for half-integer Levitons.
8 pages, 6 figures, contribution to the special issue in memory of Markus Büttiker, accepted at Physica E
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- Single-electron function at nonzero temperatures
- Current and shot noise in a normal metal-superconductor junction driven by spin-dependent periodic pulse sequence
- Quasiparticles states for integer- and fractional-charged electron wave packets
- Full counting statistics of ultrafast quantum transport
- Continuous-Variable Entanglement Test in Driven Quantum Contacts
- Quantum transport phenomena induced by time-dependent fields
- Floquet-Nambu theory of electron quantum optics with superconductors
- On-Demand and Tunable Andreev-Conversion of Single-Electron Charge Pulses
- Wigner representation of Andreev-reflected charge pulses
- Excess photon-assisted noise of Majorana and Andreev bound states