Time-dependent Andreev reflection
Dmitri V. Averin, Gongqi Wang, Andrey S. Vasenko
DOI 10.1103/PhysRevB.102.144516 · Physical Review B
Active bibliographic source — not scientific approval
Bibliographic access preserves source history; it does not approve extracted materials or validate reported claims. Review warnings on each occurrence separately.
Abstract
We extend the basic theory of Andreev reflection (AR) in a normal metal/superconductor junction to the situation with an arbitrary time-dependent bias voltage V(t) across the junction. The central element of the theory is the fact that the Fourier transform of the AR amplitude has a causal structure. As an example, the theory is used to describe the current response to short pulses of the bias voltage, which create coherent superposition of quasiparticle states with different energies. The current oscillates in time, with the gap frequency Δ/ℏ, and also as a function of the pulse area ∫V(t)dt, with the period of the single-electron flux quantum e/h.
Similar papers
Spin-dependent Andreev reflection in spin-orbit coupled systems by breaking time-reversal symmetry
similarity 0.90Dibya Kanti Mukherjee et al.
Source status unknown — claims are unverified
Wigner representation of Andreev-reflected charge pulses
similarity 0.89Benjamin Roussel et al.
Source status unknown — claims are unverified
Tunable Andreev reflection in an Aharonov-Bohm interferometer
similarity 0.89Ju Peng et al.
Source status unknown — claims are unverified
Energy Spectroscopy of Andreev Levels between Two Superconductors
similarity 0.89A. F. Morpurgo et al.
Source status unknown — claims are unverified
Andreev edge channels and magnetic focusing in normal-superconductor systems: A semiclassical analysis
similarity 0.89P. Rakyta et al.
Source status unknown — claims are unverified
Andreev reflection in the fractional quantum Hall effect
similarity 0.88Nancy P. Sandler et al.
Source status unknown — claims are unverified