Results 11 to 20 of about 1,275 (165)

Quantum teleportation with imperfect quantum dots [PDF]

npj Quantum Information, 2021
Efficient all-photonic quantum teleportation requires fast and deterministic sources of highly indistinguishable and entangled photons. Solid-state-based quantum emitters—notably semiconductor quantum dots—are a promising candidate for the role. However,
F. Basso Basset, F. Salusti, L. Schweickert, M. B. Rota, D. Tedeschi, S. F. Covre da Silva, E. Roccia, V. Zwiller, K. D. Jöns, A. Rastelli, R. Trotta   +10 more
doaj   +3 more sources

Telecom-wavelength quantum teleportation using frequency-converted photons from remote quantum dots [PDF]

Nature Communications
A global quantum internet is based on scalable networks, which require reliable quantum hardware. Among them are quantum light sources providing deterministic, high-brightness, high-fidelity entangled photons and quantum memories with coherence times ...
Tim Strobel, Michal Vyvlecka, Ilenia Neureuther, Tobias Bauer, Marlon Schäfer, Stefan Kazmaier, Nand Lal Sharma, Raphael Joos, Jonas H. Weber, Cornelius Nawrath, Weijie Nie, Ghata Bhayani, Caspar Hopfmann, Christoph Becher, Peter Michler, Simone Luca Portalupi   +15 more
doaj   +2 more sources

Quantum teleportation with dissimilar quantum dots over a hybrid quantum network [PDF]

Nature Communications
Photonic quantum information processing in metropolitan quantum networks lays the foundation for cloud quantum computing, secure communication, and the realization of a global quantum internet.
Alessandro Laneve, Giuseppe Ronco, Mattia Beccaceci, Paolo Barigelli, Francesco Salusti, Nicolas Claro-Rodriguez, Giorgio De Pascalis, Alessia Suprano, Leone Chiaudano, Eva Schöll, Lukas Hanschke, Tobias M. Krieger, Quirin Buchinger, Saimon F. Covre da Silva, Julia Neuwirth, Sandra Stroj, Sven Höfling, Tobias Huber-Loyola, Mario A. Usuga Castaneda, Gonzalo Carvacho, Nicolò Spagnolo, Michele B. Rota, Francesco Basso Basset, Armando Rastelli, Fabio Sciarrino, Klaus D. Jöns, Rinaldo Trotta   +26 more
doaj   +2 more sources

Entanglement 25 Years after Quantum Teleportation: Testing Joint Measurements in Quantum Networks [PDF]

Entropy, 2019
Twenty-five years after the invention of quantum teleportation, the concept of entanglement gained enormous popularity. This is especially nice to those who remember that entanglement was not even taught at universities until the 1990s.
Nicolas Gisin
doaj   +2 more sources

Quantum teleportation in Heisenberg chain with magnetic-field gradient under intrinsic decoherence [PDF]

Scientific Reports
One of the most appealing quantum communication protocols is quantum teleportation, which involves sharing entanglement between the sender and receiver of the quantum state. We address the two-qubit quantum teleportation based on the Heisenberg XYZ chain
Seyed Mohammad Hosseiny, Jamileh Seyed-Yazdi, Milad Norouzi, Patrizia Livreri   +3 more
doaj   +2 more sources

Entanglement teleportation along a regenerating hamster-wheel graph state [PDF]

Scientific Reports
We present an efficient and reusable approach to quantum teleportation that allows cyclic teleportation of a two-qubit graph state around a quantum hamster wheel—a ring of qubits entangled as a one-dimensional line prepared on the 20-qubit Quantinuum H1 ...
Haiyue Kang, John F Kam, Gary J Mooney, Lloyd C. L. Hollenberg   +3 more
doaj   +2 more sources

Catalytic Quantum Teleportation [PDF]

Physical Review Letters, 2021
In this work, we address fundamental limitations of quantum teleportation-the process of transferring quantum information using classical communication and preshared entanglement. We develop a new teleportation protocol based upon the idea of using ancillary entanglement catalytically, i.e., without depleting it. This protocol is then used to show that
Patryk Lipka-Bartosik, Paul Skrzypczyk
openaire   +4 more sources

Research Paper: Multi-hop Quantum Teleportation Scheme of the 6-Qubit Entangled State by Intermediate Nodes with the Best Efficiency [PDF]

فیزیک کاربردی ایران, 2022
Quantum multi-hop teleportation is important in the field of quantum communication. In this paper, we proposed a Multi-hop quantum teleportation scheme of the 6-qubit entangled state.
Negin Fatahi
doaj   +1 more source

Does Hawking effect always degrade fidelity of quantum teleportation in Schwarzschild spacetime?

Journal of High Energy Physics, 2023
Previous studies have shown that the Hawking effect always destroys quantum correlations and the fidelity of quantum teleportation in the Schwarzschild black hole.
Shu-Min Wu, Xiao-Wei Fan, Rui-Di Wang, Hao-Yu Wu, Xiao-Li Huang, Hao-Sheng Zeng   +5 more
doaj   +1 more source

Two-copy Quantum Teleportation. [PDF]

Sci Rep, 2018
AbstractWe investigate two-copy scenario of quantum teleportation based on Bell measurements. The detailed protocol is presented and the general expression of the corresponding optimal teleportation fidelity is derived, which is given by the two-copy fully entangled fraction that is invariant under local unitary transformations.
Quan Q, Zhao MJ, Fei SM, Fan H, Yang WL, Long GL.   +5 more
europepmc   +6 more sources