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cond-mat.str-el2022★ 4 cited
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…
cond-mat.str-el2020★ 3 cited
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…