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Classical many-body chaos with and without quasiparticles
(2020-11-09)
We study correlations, transport and chaos in a Heisenberg magnet as a classical model many-body system. By varying temperature and dimensionality, we can tune between settings with and without symmetry breaking and ...
Anomalous dynamics and equilibration in the classical Heisenberg chain
(2021-08-26)
The search for departures from standard hydrodynamics in many-body systems has yielded a number of promising leads, especially in low dimension. Here we study one of the simplest classical interacting lattice models, the ...
Disordered flat bands on the kagome lattice
(2018-09-27)
We study two models of correlated bond- and site-disorder on the kagome lattice considering both translationally invariant and completely disordered systems. The models are shown to exhibit a perfectly at ground state band ...
Jammed spin liquid in the bond-disordered kagome Heisenberg antiferromagnet
(2017-06-13)
We study a class of continuous spin models with bond disorder including the kagome Heisenberg antiferromagnet. For weak disorder strength, we find discrete ground states whose number grows exponentially with system size. ...
Temperature dependence of butterfly effect in a classical many-body System
(2018-08-06)
We study the chaotic dynamics in a classical many-body system of interacting spins on the kagome lattice. We characterise many-body chaos via the butter y effect as captured by an appropriate out-of-time-ordered correlator. ...
Dynamics and energy landscape of the jammed spin-liquid
(2018-11-20)
We study the low temperature static and dynamical properties of the classical bond-disordered antiferromagnetic Heisenberg model on the kagome lattice. This model has recently been shown to host a new type of spin liquid ...