41 citations · 104 across the 9 of their papers we have counts for
9 papers
Tunable Hilbert space fragmentation and extended critical regime
Mateusz Lisiecki, Janez Bonča, Marcin Mierzejewski +2
Systems exhibiting the Hilbert-space fragmentation are nonergodic, and their Hamiltonians decompose into exponentially many blocks in the computational basis. In many cases, these…
Magnon damping and mode softening in quantum double-exchange ferromagnets
A. Moreo, E. Dagotto, G. Alvarez +3
We present a comprehensive analysis of the magnetic excitations and electronic properties of fully quantum double-exchange ferromagnets, i.e., systems where ferromagnetic ordering…
Dependence of the charge transport in tilted chains on the choice of two-body interaction
Bartosz Krajewski, Marcin Mierzejewski
We study tilted chains of spinless fermions in the presence of the nearest-neighbor density-density interaction for which the noninteracting counterpart displays Stark localization…
Normal weak eigenstate thermalization
Patrycja Łydżba, Rafał Świętek, Marcin Mierzejewski +2
Eigenstate thermalization has been numerically shown to occur for few-body observables in a wide range of nonintegrable models. For intensive sums of few-body observables, a weaker…
Local integrals of motion in dipole-conserving models with Hilbert space fragmentation
Patrycja Łydżba, Peter Prelovšek, Marcin Mierzejewski
Hilbert space fragmentation is an ergodicity breaking phenomenon, in which Hamiltonian shatters into exponentially many dynamically disconnected sectors. In many fragmented systems…
Resistivity and its fluctuations in disordered many-body systems: from chains to planes
M. Mierzejewski, M. Sroda, J. Herbrych +1
We study a quantum particle coupled to hard-core bosons and propagating on disordered ladders with legs. The particle dynamics is studied with the help of rate equations for th…
Universal dynamics of density correlations at the transition to many-body localized state
M. Mierzejewski, J. Herbrych, P. Prelovšek
Within one-dimensional disordered models of interacting fermions we perform a numerical study of several dynamical density correlations, which can serve as hallmarks of the transit…
Thermalization after photoexcitation from the perspective of optical spectroscopy
J. Kogoj, L. Vidmar, M. Mierzejewski +2
We analyze the thermalization of a photoexcited charge carrier coupled to a single branch of quantum phonons within the Holstein model. To this end, we calculate the far-from-equil…
Effective approach to the Nagaoka regime of the two dimensional t-J model
M. M. Maska, M. Mierzejewski, E. A. Kochetov +3
We argue that the t-J model and the recently proposed Ising version of this model give the same physical picture of the Nagaoka regime for J/t << 1. In particular, both models are…