630 citations · 3.6k across the 41 of their papers we have counts for
42 papers
Comparing bipartite entropy growth in open-system matrix-product simulation methods
Guillermo Preisser, David Wellnitz, Thomas Botzung +1
The dynamics of one-dimensional quantum many-body systems is often numerically simulated with matrix-product states (MPSs). The computational complexity of MPS methods is known to…
Multifractality in the interacting disordered Tavis-Cummings model
Francesco Mattiotti, Jérôme Dubail, David Hagenmüller +3
We analyze the spectral and transport properties of the interacting disordered Tavis-Cummings model at half excitation filling. We demonstrate that a Poissonian level statistics co…
Rise and fall, and slow rise again, of operator entanglement under dephasing
David Wellnitz, Guillermo Preisser, Vincenzo Alba +2
The operator space entanglement entropy, or simply 'operator entanglement' (OE), is an indicator of the complexity of quantum operators and of their approximability by Matrix Produ…
Disorder enhanced vibrational entanglement and dynamics in polaritonic chemistry
David Wellnitz, Guido Pupillo, Johannes Schachenmayer
Collectively coupling molecular ensembles to a cavity has been demonstrated to modify chemical reactions akin to catalysis. Theoretically understanding this experimental finding re…
Large Random Arrowhead Matrices: Multifractality, Semi-Localization, and Protected Transport in Disordered Quantum Spins Coupled to a Cavity
Jérôme Dubail, Thomas Botzung, Johannes Schachenmayer +2
We provide an exact solution of large random arrowhead Hamiltonians with diagonal disorder, a minimal model for inhomogeneously broadened quantum emitters coupled to a cavity mode.…
A quantum optics approach to photoinduced electron transfer in cavities
David Wellnitz, Guido Pupillo, Johannes Schachenmayer
We study a simple model for photoinduced electron transfer reactions for the case of many donor-acceptor pairs that are collectively and homogeneously coupled to a photon mode of a…