4 papers
Tunable Hilbert space fragmentation and extended critical regime
Mateusz Lisiecki, Janez BonÄa, 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…
Normal weak eigenstate thermalization
Patrycja Åydżba, RafaÅ ÅwiÄtek, 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 Åydżba, Peter PrelovÅ¡ek, Marcin Mierzejewski
Hilbert space fragmentation is an ergodicity breaking phenomenon, in which Hamiltonian shatters into exponentially many dynamically disconnected sectors. In many fragmented systems…