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6 papers · 1 filter
Coherence oscillations in dephasing by non-Gaussian shot noise
Izhar Neder, Florian Marquardt
A non-perturbative treatment is developed for the dephasing produced by the shot noise of a one- dimensional electron channel. It is applied to two systems: a charge qubit and the…
Mechanics of bundled semiflexible polymer networks
O. Lieleg, M. M. A. E. Claessens, C. Heussinger +2
While actin bundles are used by living cells for structural fortification, the microscopic origin of the elasticity of bundled networks is not understood. Here, we show that above…
Tension dynamics in semiflexible polymers. Part I: Coarse-grained equations of motion
Oskar Hallatschek, Erwin Frey, Klaus Kroy
Based on the wormlike chain model, a coarse-grained description of the nonlinear dynamics of a weakly bending semiflexible polymer is developed. By means of a multiple scale pertur…
Tension dynamics in semiflexible polymers. Part II: Scaling solutions and applications
Oskar Hallatschek, Erwin Frey, Klaus Kroy
In Part I of this contribution, a systematic coarse-grained description of the dynamics of a weakly-bending semiflexible polymer was developed. Here, we discuss analytical solution…
Measuring the size of a Schroedinger cat state
Florian Marquardt, Benjamin Abel, Jan von Delft
We propose a measure for the "size" of a Schroedinger cat state, i.e. a quantum superposition of two many-body states with (supposedly) macroscopically distinct properties, by coun…
Mesoscopic to universal crossover of transmission phase of multi-level quantum dots
C. Karrasch, T. Hecht, A. Weichselbaum +3
Transmission phase αmeasurements of many-electron quantum dots (small mean level spacing δ) revealed universal phase lapses by πbetween consecutive resonances. In contrast, for dot…