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6 papers · 2 filters
Nonlinear flip-flop quantum walks through potential barriers
F. S. Passos, A. R. C. Buarque
The dynamics of nonlinear flip-flop quantum walk with amplitude-dependent phase shifts with pertubing potential barrier is investigated. Through the adjustment between uniform loca…
Enlarging the notion of additivity of resource quantifiers
L. F. Melo, Thiago Melo, Fernando Parisio
Whenever a physical quantity becomes essential to the realization of useful tasks, it is desirable to define proper measures or monotones to quantify it. In quantum mechanics, cohe…
Pauli component erasing quantum channels
Jose Alfredo de Leon, Alejandro Fonseca, Francois Leyvraz +2
Decoherence of quantum systems is described by quantum channels. However, a complete understanding of such channels, especially in the multi-particle setting, is still an ongoing d…
Linear-depth quantum circuits for multiqubit controlled gates
Adenilton J. da Silva, Daniel K. Park
Quantum circuit depth minimization is critical for practical applications of circuit-based quantum computation. In this work, we present a systematic procedure to decompose multiqu…
Parametrized constant-depth quantum neuron
Jonathan H. A. de Carvalho, Fernando M. de Paula Neto
Quantum computing has been revolutionizing the development of algorithms. However, only noisy intermediate-scale quantum devices are available currently, which imposes several rest…
Compact quantum kernel-based binary classifier
Carsten Blank, Adenilton J. da Silva, Lucas P. de Albuquerque +2
Quantum computing opens exciting opportunities for kernel-based machine learning methods, which have broad applications in data analysis. Recent works show that quantum computers c…