BELLO sadiq muhammad - Academia.edu (original) (raw)

BELLO sadiq muhammad

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Papers by BELLO sadiq muhammad

Physical Review Letters, 2020

Nature communications, Oct 12, 2018

A physical theory is called non-local when observers can produce instantaneous effects over dista... more A physical theory is called non-local when observers can produce instantaneous effects over distant systems. Non-local theories rely on two fundamental effects: local uncertainty relations and steering of physical states at a distance. In quantum mechanics, the former one dominates the other in a well-known class of non-local games known as XOR games. In particular, optimal quantum strategies for XOR games are completely determined by the uncertainty principle alone. This breakthrough result has yielded the fundamental open question whether optimal quantum strategies are always restricted by local uncertainty principles, with entanglement-based steering playing no role. In this work, we provide a negative answer to the question, showing that both steering and uncertainty relations play a fundamental role in determining optimal quantum strategies for non-local games. Our theoretical findings are supported by an experimental implementation with entangled photons.

Science Advances, 2017

Demonstration of the superadditivity of two quantum information resources with three-partite nond... more Demonstration of the superadditivity of two quantum information resources with three-partite nondistillable entangled states.

Pakistan Journal of Biological Sciences, 1999

Scientific Reports, 2015

Entanglement is one of the most puzzling features of quantum theory and of great importance for t... more Entanglement is one of the most puzzling features of quantum theory and of great importance for the new field of quantum information. The determination whether a given state is entangled or not is one of the most challenging open problems of the field. Here we report on the experimental demonstration of measurement-device-independent (MDI) entanglement detection using witness method for general two qubits photon polarization systems. In the MDI settings, there is no requirement to assume perfect implementations or neither to trust the measurement devices. This experimental demonstration can be generalized for the investigation of properties of quantum systems and for the realization of cryptography and communication protocols.