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Quantum Entanglement of Monochromatic and Non-Monochromatic Photons on a Waveguide Beam Splitter [PDF]
Entropy, 2021 It is well known that the waveguide beam splitter can be used as a source for the quantum entanglement of photons. The analysis of such quantum entanglement is a difficult problem even for monochromatic photons, since the system under study is ...
Dmitry Makarov, Yuliana Tsykareva
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Device-independent characterization of entanglement based on bell nonlocality
Fundamental Research, 2021 Quantum entanglement, has been acknowledged as a precious resource due to its inherent nonclassical correlations between subsystems. These quantum correlations have the potential for many quantum processes, including canonical ones: quantum cryptography,
Geng Chen +4 more
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Transitions in Entanglement Complexity in Random Circuits [PDF]
Quantum, 2022 Entanglement is the defining characteristic of quantum mechanics. Bipartite entanglement is characterized by the von Neumann entropy. Entanglement is not just described by a number, however; it is also characterized by its level of complexity.
Sarah True, Alioscia Hamma
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The Effect of Quantum Noise on Multipartite Entanglement from a Cascaded Parametric Amplifier
Photonics, 2023 The tripartite entanglement generated from a cascaded parametric amplifier is always present in the whole gain region in the ideal condition. However, in practical applications, the quantum entanglement is very fragile and easily deteriorated by quantum ...
Hailong Wang +5 more
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Photonics, 2022 Quantum entanglement swapping is one of the most promising quantum techniques to create or manipulate large-scale multi-mode entanglement between two distant quantum entangled systems.
Hailong Wang, Ning Ru, Pingwei Lin
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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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Exponential Clustering of Bipartite Quantum Entanglement at Arbitrary Temperatures
Physical Review X, 2022 Many inexplicable phenomena in low-temperature many-body physics are a result of macroscopic quantum effects. Such macroscopic quantumness is often evaluated via long-range entanglement, that is, entanglement in the macroscopic length scale.
Tomotaka Kuwahara, Keiji Saito
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Quantum entanglement recognition
Physical Review Research, 2021 Entanglement constitutes a key characteristic feature of quantum matter. Its detection, however, still faces major challenges. In this paper, we formulate a framework for probing entanglement based on machine learning techniques. The central element is a
Jun Yong Khoo, Markus Heyl
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Distributing Multipartite Entanglement over Noisy Quantum Networks [PDF]
Quantum, 2023 A quantum internet aims at harnessing networked quantum technologies, namely by distributing bipartite entanglement between distant nodes. However, multipartite entanglement between the nodes may empower the quantum internet for additional or better ...
Luís Bugalho +3 more
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Genuine multipartite entanglement measures based on multi-party teleportation capability
Scientific Reports, 2023 Quantifying entanglement is vital to understand entanglement as a resource in quantum information processing, and many entanglement measures have been suggested for this purpose.
Minjin Choi, Eunok Bae, Soojoon Lee
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