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Quantum diagrams and quantum networks [PDF]
SPIE Proceedings, 2014 This paper is an introduction to diagrammatic methods for representing quantum processes and quantum computing. We review basic notions for quantum information and quantum computing. We discuss topological diagrams and some issues about using category theory in representing quantum computing and teleportation. We analyze very carefully the diagrammatic
Samuel J. Lomonaco, Louis H. Kauffman
openaire +3 more sources
Quantum Network Discrimination [PDF]
Quantum, 2023 Discrimination between objects, in particular quantum states, is one of the most fundamental tasks in (quantum) information theory. Recent years have seen significant progress towards extending the framework to point-to-point quantum channels. However, with technological progress the focus of the field is shifting to more complex structures: Quantum ...
openaire +4 more sources
Quantum Network Recovery from Multinode Failure using Network Encoding with GHZ-States on Higher-Order Butterfly Networks [PDF]
MG Majumdar, SS Garani. Quantum network recovery from multinode
failure using network encoding with GHZ states on higher-order butterfly
networks. Quantum Information Processing. Springer (2021), 2021 We propose a protocol to transmit three quantum states crossly in a butterfly network with prior entanglement, in the form of GHZ states, between three senders. The proposed protocol requires only one qubit transmission or two classical bits transmission in each channel of the network.
arxiv +1 more source
Testing Real Quantum Theory in an Optical Quantum Network. [PDF]
Physical Review Letters, 2021 Quantum theory is commonly formulated in complex Hilbert spaces. However, the question of whether complex numbers need to be given a fundamental role in the theory has been debated since its pioneering days.
Zheng-da Li +14 more
semanticscholar +1 more source
Applied Sciences, 2022 Quantum repeater is a key component of quantum network, and atomic memory is one of the important candidates for constructing quantum repeater. However, the atomic transition wavelength is not suitable for long-distance transmission in optical fiber.
Shujing Li +4 more
doaj +1 more source
Designing a quantum network protocol [PDF]
Conference on Emerging Network Experiment and Technology, 2020 The second quantum revolution brings with it the promise of a quantum internet. As the first quantum network hardware prototypes near completion new challenges emerge.
W. Kozlowski, A. Dahlberg, S. Wehner
semanticscholar +1 more source
Chiral quantum network with giant atoms [PDF]
Quantum Science and Technology, 2021 In superconducting quantum circuits (SQCs), chiral routing quantum information is often realized with the ferrite circulators, which are usually bulky, lossy and require strong magnetic fields.
Xin Wang, Hongrong Li
semanticscholar +1 more source
Complex Quantum Networks: a Topical Review [PDF]
Journal of Physics A: Mathematical and Theoretical 57 233001
(2024), 2023 These are exciting times for quantum physics as new quantum technologies are expected to soon transform computing at an unprecedented level. Simultaneously network science is flourishing proving an ideal mathematical and computational framework to capture the complexity of large interacting systems.
arxiv +1 more source
Deterministic multi-qubit entanglement in a quantum network [PDF]
Nature, 2020 The generation of high-fidelity distributed multi-qubit entanglement is a challenging task for large-scale quantum communication and computational networks1–4.
Y. Zhong +10 more
semanticscholar +1 more source
Robust quantum-network memory based on spin qubits in isotopically engineered diamond [PDF]
npj Quantum Information, 2021 Quantum networks can enable quantum communication and modular quantum computation. A powerful approach is to use multi-qubit nodes that provide quantum memory and computational power.
C. Bradley +11 more
semanticscholar +1 more source