Charge Pumping in Mesoscopic Systems coupled to a Superconducting Lead
M. Blaauboer
Abstract
We derive a general scattering-matrix formula for the pumped current through a mesoscopic region attached to a normal and a superconducting lead. As applications of this result we calculate the current pumped through (i) a pump in a wire, (ii) a quantum dot in the Coulomb blockade regime, and (iii) a ballistic double-barrier junction, all coupled to a superconducting lead. Andreev reflection is shown to enhance the pumped current by up to a factor of 4 in case of equal coupling to the leads. We find that this enhancement can still be further increased for slightly asymmetric coupling.
Create a lesson
Related papers
ConvexAD: differentiable phase retrieval with geometric regularization for high-strain, low-signal Bragg coherent diffraction imaging
Matteo Masto, Ewen Bellec, Etienne Polack et al.
Symmetry-protected isolation of the quantum metric in chiral type-II semi-Dirac semimetals
Wen-Hao Bian, Jing Wang
Torsion, valley holonomy, and Berry phases of quasiparticles encircling dislocations and defect complexes in graphene
G. Q. Garcia, A. M. de M. Carvalho, C. Furtado
Field-free transverse response in altermagnet and topological insulator heterojunctions
Bijay Kumar Sahoo, Abhiram Soori
Nonlinearity-Induced Suppression of Dissipation in Bath-Coupled Floquet Topological Insulators
Bhoomija Chaurasia, Sebabrata Mukherjee
Dissipationless valley diode effects in Kekulé graphene superlattices
W. Zeng