41 citations · 58 across the 4 of their papers we have counts for
4 papers
Density matrix of electrons coupled to phonons and the electron-phonon entanglement content of excited states
Gergő Roósz, Karsten Held
We derive the exact reduced density matrix for the electrons in an analytically solvable electron-phonon model. Here, the electrons are described as a Luttinger liquid that is coup…
Entanglement of electrons and the lattice in a Luttinger system
Gergő Roósz, Carsten Timm
The coupling between electronic and lattice degrees of freedom lies at the core of many important properties of solids. Nevertheless, surprisingly little is know about the entangle…
Non-equilibrium quantum relaxation across a localization-delocalization transition
Gergö Roósz, Uma Divakaran, Heiko Rieger +1
We consider the one-dimensional -model in a quasi-periodic transverse-field described by the Harper potential, which is equivalent to a tight-binding model of spinless fermions…
Evolution of the magnetization after a local quench in the critical transverse-field Ising chain
F. Iglói, G. Roósz, L. Turban
We study the time evolution of the local magnetization in the critical Ising chain in a transverse field after a sudden change of the parameters at a defect. The relaxation of the…