237 citations · 405 across the 8 of their papers we have counts for
8 papers
Quantum simulation of expanding space-time with tunnel-coupled condensates
Clemens Neuenhahn, Florian Marquardt
We consider two weakly interacting quasi-1D condensates of cold bosonic atoms. It turns out that a time-dependent variation of the tunnel-coupling between those condensates is equi…
Localized phase structures growing out of quantum fluctuations in a quench of tunnel-coupled atomic condensates
Clemens Neuenhahn, Anatoli Polkovnikov, Florian Marquardt
We investigate the relative phase between two weakly interacting 1D condensates of bosonic atoms after suddenly switching on the tunnel-coupling. The following phase dynamics is go…
Thermalization of Interacting Fermions and Delocalization in Fock space
Clemens Neuenhahn, Florian Marquardt
By means of exact diagonalization, we investigate the onset of 'eigenstate thermalization' and the crossover to ergodicity in a system of 1D fermions with increasing interaction. W…
Electron-Plasmon scattering in chiral 1D systems with nonlinear dispersion
Markus Heyl, Stefan Kehrein, Florian Marquardt +1
We investigate systems of spinless one-dimensional chiral fermions realized, e.g., in the arms of electronic Mach-Zehnder interferometers, at high energies. Taking into account the…
Dephasing by electron-electron interactions in a ballistic Mach-Zehnder interferometer
Clemens Neuenhahn, Florian Marquardt
We consider a ballistic Mach-Zehnder interferometer for electrons propagating chirally in one dimension (such as in an integer Quantum Hall effect edge channel). In such a system,…
Recent progress in open quantum systems: Non-Gaussian noise and decoherence in fermionic systems
Clemens Neuenhahn, B. Kubala, B. Abel +1
We review our recent contributions to two topics that have become of interest in the field of open, dissipative quantum systems: non-Gaussian noise and decoherence in fermionic sys…