839 citations · 5.7k across the 74 of their papers we have counts for
11 papers · 1 filter
Logarithmic spreading of out-of-time-ordered correlators without many-body localization
Adam Smith, Johannes Knolle, Roderich Moessner +1
Out-of-time-ordered correlators (OTOCs) describe information scrambling under unitary time evolution, and provide a useful probe of the emergence of quantum chaos. Here we calculat…
Observing spin fractionalization in the Kitaev spin liquid via temperature evolution of indirect resonant inelastic x-ray scattering
Gábor B. Halász, Stefanos Kourtis, Johannes Knolle +1
Motivated by the ongoing effort to search for high-resolution signatures of quantum spin liquids, we investigate the temperature dependence of the indirect resonant inelastic x-ray…
Quantum spin liquid at finite temperature: proximate dynamics and persistent typicality
I. Rousochatzakis, S. Kourtis, J. Knolle +2
Quantum spin liquids are long-range entangled states of matter with emergent gauge fields and fractionalized excitations. While candidate materials, such as the Kitaev honeycomb ru…
Direct Evidence for Fermi Statistics from Proximity to the Kitaev Spin Liquid in RuCl3
Yiping Wang, Gavin B. Osterhoudt, Yao Tian +12
A key characteristic of quantum spin liquids(QSL) is the presence of fractional excitations related to their entanglement properties, yet experimental verification of their statist…
Bond disordered spin liquid and the honeycomb iridate HLiIrO abundant low energy density of states from random Majorana hopping
Johannes Knolle, Roderich Moessner, Natalia B. Perkins
The 5d-electron honeycomb compound HLiIrO [K. Kitagawa , Nature 554, 341-345 (2018)] exhibits an apparent quantum spin liquid (QSL) state. In this intercalate…
Thermally induced metallic phase in a gapped quantum spin liquid - a Monte Carlo study of the Kitaev model with parity projection
Chris N. Self, Johannes Knolle, Sofyan Iblisdir +1
Thermalisation is a probabilistic process. As such, it is generally expected that when we increase the temperature of a system its classical behaviour dominates its quantum coheren…
A Field Guide to Spin Liquids
Johannes Knolle, Roderich Moessner
Spin liquids are collective phases of quantum matter which have eluded discovery in correlated magnetic materials for over half a century. Theoretical models of these enigmatic top…
Dynamics of a Lattice Gauge Theory with Fermionic Matter -- Minimal Quantum Simulator with Time-Dependent Impurities in Ultracold Gases
Adam Smith, Dmitry L. Kovrizhin, Roderich Moessner +1
We propose a minimal model to study the real-time dynamics of a lattice gauge theory coupled to fermionic matter in a cold atom quantum simulator setup. We show that…
Dynamical Localization in Lattice Gauge Theories
Adam Smith, Johannes Knolle, Roderich Moessner +1
We study quantum quenches in two-dimensional lattice gauge theories with fermions coupled to dynamical gauge fields. Through the identification of an extensive set o…
Majorana representations of spin and an alternative solution of the Kitaev honeycomb model
Jianlong Fu, Johannes Knolle, Natalia B. Perkins
Based on the Dirac spinor representation of the SO(4) group, we discuss the relationship between three types of representation of spin in terms of Majorana fermions, namely the Kit…
Dynamics of a quantum spin liquid beyond integrability the Kitaev-Heisenberg- model in an augmented parton mean-field theory
Johannes Knolle, Subhro Bhattacharjee, Roderich Moessner
We present an augmented parton mean-field theory which (i) reproduces the ground state, spectrum, and dynamics of the quantum spin liquid phase of Kitaev's honeycomb model;…