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Robust nonequilibrium surface currents in the 3D Hofstadter model
Mark T. Mitchison, Ángel Rivas, Miguel A. Martin-Delgado
Genuinely two-dimensional robust crosscurrents -- which flow against the natural direction of heat flux -- have been missing since the discovery of their one-dimensional counterpar…
Topological Heat Transport and Symmetry-Protected Boson Currents
Ángel Rivas, Miguel A. Martin-Delgado
The study of non-equilibrium properties in topological systems is of practical and fundamental importance. Here, we analyze the stationary properties of a two-dimensional bosonic H…
Density Matrix Topological Insulators
A. Rivas, O. Viyuela, M. A. Martin-Delgado
Thermal noise can destroy topological insulators (TI). However we demonstrate how TIs can be made stable in dissipative systems. To that aim, we introduce the notion of band Liouvi…
Thermal Instability of Protected End States in a 1-D Topological Insulator
O. Viyuela, A. Rivas, M. A. Martin-Delgado
We have studied the dynamical thermal effects on the protected end states of a topological insula- tor (TI) when it is considered as an open quantum system in interaction with a no…