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Mostrando ítems 1-10 de 124
High-dimensional angular two-photon interference and angular qudit states
(The Optical Society, 2020-06)
Using angular position–orbital angular momentum entangled photons, we propose an experiment to generate maximally entangled states in D-dimensional quantum systems, the so called qudits, by exploiting correlations of ...
Geração de estados emaranhados de qudits espaciais e análises experimentais visando a sua utilização prática
(Universidade Federal de Minas GeraisUFMG, 2006-10-04)
Generalized conditional entropy optimization for qudit-qubit states
(American Physical Society, 2014-10)
We derive a general approximate solution to the problem of minimizing the conditional entropy of a qudit-qubit system resulting from a local measurement on the qubit, which is valid for general entropic forms and becomes ...
Medição da Fase Topológica Fracionária em qudits fotônicos codificados espacialmente
(Universidade Federal de Minas GeraisBrasilICEX - INSTITUTO DE CIÊNCIAS EXATASPrograma de Pós-Graduação em FísicaUFMG, 2018-04-10)
In this work we performed two experiments to observe the fractional topological phases in two qudits photonic systems. The qudits are encoded in the transverse position degree of freedom of photon pairs generated by the ...
Conditional states and entropy in qudit-qubit systems
(American Physical Society, 2019-06-25)
We examine, in correlated mixed states of qudit-qubit systems, the set of all conditional qubit states that can be reached after local measurements at the qudit based on rank-1 projectors. While for a similar measurement ...
Optimized generation of spatial qudits by using a pure phase spatial light modulator
(IOP Publishing, 2014-11)
We present a method for preparing arbitrary pure states of spatial qudits, namely, D-dimensional ($D\geqslant 2$) quantum systems carrying information in the transverse momentum and position of single photons. For this ...
Computational speed-up with a single qudit
(2015)
Quantum algorithms are known for providing more efficient solutions to certain computational tasks than any corresponding classical algorithm. Here we show that a single qudit is sufficient to implement an oracle based ...
Protecting operations on qudits from noise by continuous dynamical decoupling
(2021-03-12)
We develop a procedure of generalized continuous dynamical decoupling (GCDD) for an ensemble of d-level systems (qudits), allowing one to protect the action of an arbitrary multiqudit gate from general noise. We first ...