312 citations · 5.8k across the 176 of their papers we have counts for
6 papers · 1 filter
Andreev magnetotransport in low-dimensional proximity structures: Spin-dependent conductance enhancement
Grygoriy Tkachov, Klaus Richter
We study the excess conductance due to the superconducting proximity effect in a ballistic two-dimensional electron system subject to an in-plane magnetic field. We show that under…
Semiclassical form factor for spectral and matrix element fluctuations of multi-dimensional chaotic systems
M. Turek, D. Spehner, S. Müller +1
We present a semiclassical calculation of the generalized form factor which characterizes the fluctuations of matrix elements of the quantum operators in the eigenbasis of the Hami…
Nonlinear Resonant Transport of Bose Einstein Condensates
Tobias Paul, Klaus Richter, Peter Schlagheck
The coherent flow of a Bose-Einstein condensate through a quantum dot in a magnetic waveguide is studied. By the numerical integration of the time-dependent Gross-Pitaevskii equati…
The role of orbital dynamics in spin relaxation and weak antilocalization in quantum dots
Oleg Zaitsev, Diego Frustaglia, Klaus Richter
We develop a semiclassical theory for spin-dependent quantum transport to describe weak (anti)localization in quantum dots with spin-orbit coupling. This allows us to distinguish d…
Aharonov-Bohm Physics with Spin II: Spin-Flip Effects in Two-dimensional Ballistic Systems
Diego Frustaglia, Martina Hentschel, Klaus Richter
We study spin effects in the magneto-conductance of ballistic mesoscopic systems subject to inhomogeneous magnetic fields. We present a numerical approach to the spin-dependent Lan…
Aharonov-Bohm Physics with Spin I: Geometric Phases in One-dimensional Ballistic Rings
Martina Hentschel, Henning Schomerus, Diego Frustaglia +1
We analytically calculate the spin-dependent electronic conductance through a one-dimensional ballistic ring in the presence of an inhomogeneous magnetic field and identify signatu…