Results 31 to 40 of about 457,528 (172)
How discord underlies the noise resilience of quantum illumination
New Journal of Physics, 2016 The benefits of entanglement can outlast entanglement itself. In quantum illumination, entanglement is employed to better detect reflecting objects in environments so noisy that all entanglement is destroyed.
Christian Weedbrook +4 more
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Static Entanglement Analysis of Quantum Programs [PDF]
arXiv, 2023 Quantum entanglement plays a crucial role in quantum computing. Entangling information has important implications for understanding the behavior of quantum programs and avoiding entanglement-induced errors. Entanglement analysis is a static code analysis technique that determines which qubit may entangle with another qubit and establishes an ...
arxiv
Blindly verifying partially unknown entanglement
iScience, 2022 Summary: Quantum entanglement has shown distinguished features beyond any classical state. Many methods have been presented to verify unknown entanglement with the complete information about the density matrices by quantum state tomography. In this work,
Ming-Xing Luo +2 more
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Sensors, 2022 A quantum illumination radar uses quantum entanglement to enhance photodetection sensitivity. The entanglement is quickly destroyed by the decoherence in an environment, although the sensitivity enhancement could survive thanks to quantum correlations ...
Sylvain Borderieux +2 more
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Maximally entangled state and fully entangled fraction [PDF]
Physical Review A 91, 012310 (2015), 2016 We study maximally entangled states and fully entangled fraction in general d'\otimes d (d'\geq d) systems. Necessary and sufficient conditions for maximally entangled pure and mixed states are presented. As a natural generalization of the usual fully entangled fraction for d\otimes d systems, we define the maximal overlap between a given quantum state
arxiv +1 more source
Quantum Entanglement: Spooky Action at a Distance
Quanta, 2020 Quantum entanglement is an important resource in quantum information technologies. Here, we study and characterize in a precise mathematical language some of the weird and nonintuitive features of quantum entanglement.
Stan Gudder
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Witnessing light-driven entanglement using time-resolved resonant inelastic X-ray scattering
Nature Communications, 2023 Characterizing and controlling entanglement in quantum materials is crucial for the development of next-generation quantum technologies. However, defining a quantifiable figure of merit for entanglement in macroscopic solids is theoretically and ...
Jordyn Hales +6 more
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Entanglement Access Control for the Quantum Internet [PDF]
, 2019 Quantum entanglement is a crucial element of establishing the entangled network structure of the quantum Internet. Here we define a method to achieve controlled entanglement access in the quantum Internet. The proposed model defines different levels of entanglement accessibility for the users of the quantum network.
arxiv +1 more source
Cloning quantum entanglement in arbitrary dimensions [PDF]
Phys. Rev. A 72, 042314 (2005), 2005 We have found a quantum cloning machine that optimally duplicates the entanglement of a pair of $d$-dimensional quantum systems. It maximizes the entanglement of formation contained in the two copies of any maximally-entangled input state, while preserving the separability of unentangled input states.
arxiv +1 more source
Physical Review Research, 2020 Quantum entanglement is a quantum-mechanical phenomenon where the quantum state of a many-body system with many degrees of freedom cannot be described independently of the state of each body with a given degree of freedom, no matter how far apart in ...
George Mathew +11 more
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