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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 ...
Exotic superconductivity through bosons in a dynamical cluster approximation
(2015-08-07)
We study the instabilities towards (exotic) superconductivity of mixtures of spin-1/2 fermions coupled to scalar bosons on a two-dimensional square lattice with the Dynamical-Cluster-Approximation (DCA) using a numerically ...
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. ...
Population dynamics in Floquet realisation of Harper-Hofstadter Hamiltonian
(2015-04-21)
We study the recent Floquet-realisation of the Harper-Hofstadter model in a gas of cold bosonic atoms. We study in detail the scattering processes in this system in the weakly interacting regime due to the interplay of ...
Synthetic dimensions in the strong-coupling limit: supersolids and pair-superfluids
(2016-06-29)
We study the many-body phases of bosonic atoms with N internal states confined to a 1D optical lattice under the influence of a synthetic magnetic field and strong repulsive interactions. The N internal states of the atoms ...
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. ...
Radial flows and angular momentum conservation in galactic chemical evolution
(2012-07-31)
We study the effects of radial flows on Galactic chemical evolution. A simple analytic scheme is developed prescribing the coupling of infall from the intergalactic medium and radial flows within the disc based on angular ...
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 ...
Scattering theory for Floquet-Bloch states
(2014-10-20)
Motivated by recent experimental implementations of artificial gauge fields for gases of cold atoms, we study the scattering properties of particles that are subjected to time-periodic Hamiltonians. Making use of Floquet ...