activity
20182026
most citedStaggered Quantum Walk on Hexagonal Lattices

5 citations · 10 across the 5 of their papers we have counts for

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5 papers

quant-ph2026

A Mixture-of-Experts Framework for Practical Hybrid-Quantum Models in Credit Card Fraud Detection

Rodrigo Chaves, Kunal Kumar, Bruno Chagas +4

This paper investigates whether hybrid quantum-classical machine learning can deliver practical improvements in financial fraud detection performance for card-based and other payme…

quant-ph2022

Transport properties in directed Quantum Walks on the line

Rodrigo Chaves, Jaime Santos, Bruno Chagas

We obtained analytical expressions considering a directed continuous-time quantum walk on a directed infinite line using Bessel functions, expanding previous results in the literat…

quant-ph2022★ 1 cited

Why and how to add direction to a quantum walk

Rodrigo Chaves, Bruno Oliveira Chagas, Gabriel Coutinho

We formalize the treatment of directed (or chiral) quantum walks using Hermitian adjacency matrices, bridging two developing fields of research in quantum information and spectral…

quant-ph2020★ 4 cited

Discrete-Time Quantum Walks on Oriented Graphs

Bruno Chagas, Renato Portugal

The interest in quantum walks has been steadily increasing during the last two decades. It is still worth to present new forms of quantum walks that might find practical applicatio…

quant-ph2018★ 5 cited

Staggered Quantum Walk on Hexagonal Lattices

Bruno Chagas, Renato Portugal, Stefan Boettcher +1

A discrete-time staggered quantum walk was recently introduced as a generalization that allows to unify other versions, such as the coined and Szegedy's walk. However, it also prod…