5 papers
Quantum Corrections to the Polarizability and Dephasing in Isolated Disordered Metals
M. Treiber, P. M. Ostrovsky, O. M. Yevtushenko +2
We study the quantum corrections to the polarizability of isolated metallic mesoscopic systems using the loop-expansion in diffusive propagators. We show that the difference betwee…
Transport and Dephasing in a Quantum Dot: Multiply Connected Graph Model
Maximilian Treiber, Oleg Yevtushenko, Jan von Delft
Using the theory of diffusion in graphs, we propose a model to study mesoscopic transport through a diffusive quantum dot. The graph consists of three quasi-1D regions: a central r…
Thermal noise and dephasing due to electron interactions in non-trivial geometries
M. Treiber, C. Texier, O. M. Yevtushenko +2
We study Johnson-Nyquist noise in macroscopically inhomogeneous disordered metals and give a microscopic derivation of the correlation function of the scalar electric potentials in…
Dimensional Crossover of the Dephasing Time in Disordered Mesoscopic Rings: From Diffusive through Ergodic to 0D Behavior
M. Treiber, O. M. Yevtushenko, F. Marquardt +2
We analyze dephasing by electron interactions in a small disordered quasi-one dimensional (1D) ring weakly coupled to leads, where we recently predicted a crossover for the dephasi…
Dimensional Crossover of the Dephasing Time in Disordered Mesoscopic Rings
M. Treiber, O. M. Yevtushenko, F. Marquardt +2
We study dephasing by electron interactions in a small disordered quasi-one dimensional (1D) ring weakly coupled to leads. We use an influence functional for quantum Nyquist noise…