116 citations · 257 across the 7 of their papers we have counts for
7 papers
Thermal and optical conductivity in the Holstein model at half filling and at finite temperature in the Luttinger-liquid and charge-density-wave regime
David Jansen, Fabian Heidrich-Meisner
Electron-phonon interactions play a key role in many branches of solid-state physics. Here, our focus is on the transport properties of one-dimensional systems, and we apply effici…
Finite-temperature optical conductivity with density-matrix renormalization group methods for the Holstein polaron and bipolaron with dispersive phonons
David Jansen, Janez Bonča, Fabian Heidrich-Meisner
A comprehensive picture of polaron and bipolaron physics is essential to understand the optical absorption spectrum in many materials with electron-phonon interactions. In particul…
Real-time non-adiabatic dynamics in the one-dimensional Holstein model: Trajectory-based vs exact methods
Michael ten Brink, Stefan Gräber, Miroslav Hopjan +4
We benchmark a set of quantum-chemistry methods, including multitrajectory Ehrenfest, fewest-switches surface-hopping, and multiconfigurational-Ehrenfest dynamics, against exact qu…
Charge density wave breakdown in a heterostructure with electron-phonon coupling
David Jansen, Christian Jooss, Fabian Heidrich-Meisner
Understanding the influence of vibrational degrees of freedom on transport through a heterostructure poses considerable theoretical and numerical challenges. In this work, we use t…
Eigenstate thermalization hypothesis through the lens of autocorrelation functions
C. Schönle, D. Jansen, F. Heidrich-Meisner +1
Matrix elements of observables in eigenstates of generic Hamiltonians are described by the Srednicki ansatz within the eigenstate thermalization hypothesis (ETH). We study a quantu…
Finite-temperature density-matrix renormalization group method for electron-phonon systems: Thermodynamics and Holstein-polaron spectral functions
David Jansen, Janez Bonča, Fabian Heidrich-Meisner
We investigate the thermodynamics and finite-temperature spectral functions of the Holstein polaron using a density-matrix renormalization group method. Our method combines purific…
Eigenstate thermalization and quantum chaos in the Holstein polaron model
David Jansen, Jan Stolpp, Lev Vidmar +1
The eigenstate thermalization hypothesis (ETH) is a successful theory that provides sufficient criteria for ergodicity in quantum many-body systems. Most studies were carried out f…