Microscopic theory of photoassisted electronic transport in normal-metal/BCS-superconductor junctions

  title={Microscopic theory of photoassisted electronic transport in normal-metal/BCS-superconductor junctions},
  author={Bruno Bertin-Johannet and J{\'e}r{\^o}me Rech and Thibaut Jonckheere and Beno{\^i}t Gr{\'e}maud and Laurent Raymond and Thierry Martin},
  journal={Physical Review B},
We investigate photo assisted electronic transport in a normal-metal/BCS-superconductor junction with a microscopic Hamiltonian approach, for several types of periodic voltage drives applied on the normal-metal side. The time-dependent current and the photo-assisted noise are computed to all orders of the tunneling Hamiltonian using a Keldysh-Nambu-Floquet approach. An excess noise analysis allows one to determine to what extent pure electronic excitations with a small number of electrons per… 



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Physica E: Low-dimensional Systems and Nanostructures

2H phase


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Nature 502

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