75 citations · 749 across the 25 of their papers we have counts for
11 papers · 1 filter
Heat, Work and Energy Currents in the Boundary-Driven XXZ Spin Chain
Emmanuel Pereira
We address the detailed study of the energy current and its components, heat and work, in the boundary-driven 1D XXZ quantum model. We carry out the investigation by considering tw…
Heat current rectification in segmented XXZ chains
Vinitha Balachandran, Giuliano Benenti, Emmanuel Pereira +2
We study the rectification of heat current in an XXZ chain segmented in two parts. We model the effect of the environment with Lindblad heat baths. We show that, in our system, rec…
Energy current manipulation and reversal of rectification in graded XXZ spin chains
Alberto L. de Paula, Emmanuel Pereira, Raphael C. Drumond +1
This work is devoted to the investigation of nontrivial transport properties in many-body quantum systems. Precisely, we study transport in the steady state of spin-1/2 Heisenberg…
Perfect diode in quantum spin chains
Vinitha Balachandran, Giuliano Benenti, Emmanuel Pereira +2
We study the rectification of spin current in chains segmented in two parts, each with a different anisotropy parameter. Using exact diagonalization and a matrix product stat…
Ingredients for an efficient thermal diode
Shunda Chen, Emmanuel Pereira, Giulio Casati
We provide convincing empirical evidence that long range interactions strongly enhance the rectification effect which takes place in mass graded systems. Even more importantly the…
Increasing thermal rectification: Effects of long range interactions
Emmanuel Pereira, Ricardo R. Ávila
In this paper, we study the effects of the interparticle interaction range on heat flow. We show that, by increasing the interaction range, we may amplify the thermal conductivity…