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4 papers · 2 filters
Effects of nonorthogonality in the time-dependent current through tunnel junctions
J. Fransson, O. Eriksson, I. Sandlov
A theoretical technique which allows to include contributions from non-orthogonality of the electron states in the leads connected to a tunneling junction is derived. The theory is…
Conductance of Open Quantum Billiards and Classical Trajectories
R. G. Nazmitdinov, K. N. Pichugin, I. Rotter +1
We analyse the transport phenomena of 2D quantum billiards with convex boundary of different shape. The quantum mechanical analysis is performed by means of the poles of the S-matr…
Symmetry-breaking and chaos in electron transport in semiconductor superlattices
Kirill N. Alekseev, Ethan H. Cannon, Jonathan C. McKinney +2
We study the motion of electrons in a single miniband of a semiconductor superlattice driven by THz electric field polarized along the growth direction. We work in the semiclassica…
Fractional and unquantized dc voltage generation in THz-driven semiconductor superlattices
Kirill N. Alekseev, Ethan H. Cannon, Feodor V. Kusmartsev +1
We consider the spontaneous creation of a dc voltage across a strongly coupled semiconductor superlattice subjected to THz radiation. We show that the dc voltage may be approximate…