Author

M. C. de Oliveira

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Open access Sep 2026

Finite-Bandwidth Protection of a Three-Level Quantum Heat Engine Against Parasitic Heat Leaks

Finite-bandwidth reservoir engineering can suppress unwanted transitions in a quantum thermal machine, but a physical filter also introduces a finite response time. We study this competition in a continuous three-level heat engine whose hot environment couples parasitically to the cold transition. The corresponding thr...

G. A. Prataviera, M. C. de Oliveira · Entropy · 0 citations

Preprint Aug 2026

Connectivity--Interference Competition in Coherent Transport on Percolated Hierarchical Small-World Networks

Adding links generally improves classical transport by increasing the number of available paths. We show that coherent quantum transport can display the opposite behavior. Using continuous-time quantum walks on a percolated hierarchical small-world network, we identify a coherent overconnectivity penalty: root-to-bound...

M. Cirino, M. C. de Oliveira · 1 citation