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Many-body localization edge in the random-field Heisenberg chain
David J. Luitz, Nicolas Laflorencie, Fabien Alet
We present a large scale exact diagonalization study of the one dimensional spin Heisenberg model in a random magnetic field. In order to access properties at varying energy…
Critical Properties of the Superfluid - Bose Glass Transition in Two Dimensions
Juan Pablo Álvarez Zúñiga, David J. Luitz, Gabriel Lemarié +1
We investigate the superfluid (SF) to Bose glass (BG) quantum phase transition using extensive quantum Monte Carlo simulations of two-dimensional hard-core bosons in a random box p…
Improving entanglement and thermodynamic Rényi entropy measurements in quantum Monte Carlo
David J. Luitz, Xavier Plat, Nicolas Laflorencie +1
We present a method for improving measurements of the entanglement Rényi entropies in quantum Monte Carlo simulations by relating them with measurements of participation Rényi entr…
Participation spectroscopy and entanglement Hamiltonian of quantum spin models
David J. Luitz, Nicolas Laflorencie, Fabien Alet
Shannon-Rényi entropies and associated participation spectra quantify how much a many-body wave-function is localized in a given configuration basis. Using these tools, we present…
Shannon-Rényi entropies and participation spectra across 3d criticality
David J. Luitz, Fabien Alet, Nicolas Laflorencie
Universal features in the scalings of Shannon-Rényi entropies of many-body groundstates are studied for interacting spin- systems across (2+1) dimensional criti…