1.2k citations · 4.2k across the 107 of their papers we have counts for
4 papers · 1 filter
Weak-localization approach to a 2D electron gas with a spectral node
K. Ziegler, A. Sinner
We study a weakly disordered 2D electron gas with two bands and a spectral node within the weak-localization approach and compare its results with those of Gaussian fluctuations ar…
Phase transitions in the two-dimensional electron-hole gas
Oleg L. Berman, Roman Ya. Kezerashvili, Klaus Ziegler
A first order phase transition between a BCS phase and an insulating Mott phase for a gas of spatially separated electrons and holes with tunable Coulomb interaction and variable d…
Linear response peculiarity of a two--dimensional Dirac electron gas at weak scattering
Andreas Sinner, Klaus Ziegler
The conductivity of an electron gas can be alternatively calculated either from the current--current or from the density--density correlation function. Here, we compare these two f…
Dynamical entanglement in coupled optical cavities
K. Ziegler
We study the evolution of a photonic state in a coupled pair of anharmonic cavities and compare it with the corresponding system of two coupled harmonic cavities. The photons in th…