3 citations · 4 across the 11 of their papers we have counts for
5 papers · 1 filter
The minimal principals of Hermitian matrices and the negativity of bipartite of qubit states
Joao Luzeilton de Oliveira, Rubens Viana Ramos
Quantum entanglement is an enigmatic and powerful property that has attracted much attention due to its usefulness in new ways of communications, like quantum teleportation and qua…
Implementation of non-local XOR function for coherent-state qubit
Joao Batista Rosa Silva, Rubens Viana Ramos
This work describes how to implement a non-local xor function for coherent-state qubit using only linear optics. The setup proposed does not use gates based on teleportation and it…
Analysis of electron localization in a coupled quantum dot structure via variational approach: numerical results and application in quantum-dot cellular automata
George Andre Pereira The, Rubens Viana Ramos, Sergio Antenor de Carvalho
Analysis of quantum dot structures is a current topic with important applications in solid-state digital logic design, quantum information technology and quantum optics. In this wo…
Quantum protocols for transference of proof of zero-knowledge systems
Jose Claudio do Nascimento, Rubens Viana Ramos
Zero-knowledge proof system is an important protocol that can be used as a basic block for construction of other more complex cryptographic protocols. An intrinsic characteristic o…
Quantum bit string commitment protocol using polarization of mesoscopic coherent states
Fabio Alencar Mendonca, Rubens Viana Ramos
In this work, we propose a quantum bit string commitment protocol using polarization of mesoscopic coherent states. The protocol is described and its security against brute force a…