Results 41 to 50 of about 1,128,063 (286)

Quantum capacities for entanglement networks [PDF]

2016 IEEE International Symposium on Information Theory (ISIT), 2016
We discuss quantum capacities for two types of entanglement networks: $\mathcal{Q}$ for the quantum repeater network with free classical communication, and $\mathcal{R}$ for the tensor network as the rank of the linear operation represented by the tensor network.
Shawn X. Cui, Zheng-Feng Ji, Nengkun Yu, Bei Zeng   +3 more
openaire   +3 more sources

Quantum interference and manipulation of entanglement in silicon wire waveguide quantum circuits [PDF]

, 2012
Integrated quantum photonic waveguide circuits are a promising approach to realizing future photonic quantum technologies. Here, we present an integrated photonic quantum technology platform utilizing the silicon-on-insulator material system, where ...
O'Brien, J. L., Natarajan, C.M., Thompson, M.G., Engin, E., Yoshida, H., Zwiller, V, Yoshida, H, Ohira, K., Ezaki, M, Ezaki, M., Dorenbos, S. N., Engin, E, Suzuki, N, Zwiller, V., Dorenbos, S.N. (author), Thompson, M G, Engin, E. (author), O'brien, J L, Dorenbos, S N, Hadfield, R., Dorenbos, S.N., Zwiller, V. (author), Hadfield, R H, Ohira, K, O'Brien, J.L., Natarajan, C M, Iizuka, N, Iizuka, N., Tanner, M G; id_orcid, Hadfield, R. H., Natarajan, C. M., Bonneau, D, Tanner, M.G., Thompson, M. G., Bonneau, D., Suzuki, N., Bonneau, D. (author), Tanner, M. G.   +37 more
core   +1 more source

Noncommutative metasurfaces enabled diverse quantum path entanglement of structured photons

Opto-Electronic Science
Quantum entanglement, a fundamental concept in quantum mechanics, lies at the heart of many current and future quantum technologies. A pivotal task is the generation and control of diverse quantum entangled states in a more compact and flexible manner ...
Yan Wang, Yichang Shou, Jiawei Liu, Qiang Yang, Shizhen Chen, Weixing Shu, Shuangchun Wen, Hailu Luo   +7 more
doaj   +1 more source

Detecting quantum entanglement

Theoretical Computer Science, 2002
We review the criteria for separability and quantum entanglement, both in a bipartite as well as a multipartite setting. We discuss Bell inequalities, entanglement witnesses, entropic inequalities, bound entanglement and several features of multipartite entanglement.
openaire   +2 more sources

The Squashed Entanglement of a Quantum Channel [PDF]

IEEE Transactions on Information Theory, 2014
This paper defines the squashed entanglement of a quantum channel as the maximum squashed entanglement that can be registered by a sender and receiver at the input and output of a quantum channel, respectively. A new subadditivity inequality for the original squashed entanglement measure of Christandl and Winter leads to the conclusion that the ...
Masahiro Takeoka, Saikat Guha 0001, Mark M. Wilde   +2 more
openaire   +2 more sources

Quantum entanglement of photons on free electrons

Results in Physics, 2023
The quantum entanglement of photons is one of the interesting and important manifestations of the quantum world, which is already being used in quantum technologies.
D.N. Makarov
doaj   +1 more source

Quantum entanglement and topological entanglement [PDF]

New Journal of Physics, 2002
This paper discusses relationships between topological entanglement and quantum entanglement. Specifically, we propose that it is more fundamental to view topological entanglements such as braids as entanglement operators and to associate with them unitary operators that are capable of creating quantum entanglement.
Louis H Kauffman, Samuel J Lomonaco
openaire   +1 more source

Approximate encoding of quantum states using shallow circuits

npj Quantum Information
Quantum algorithms and simulations often require the preparation of complex states through sequences of 2-qubit gates. For a generic quantum state, the number of required gates grows exponentially with the number of qubits, becoming unfeasible on near ...
Matan Ben-Dov, David Shnaiderov, Adi Makmal, Emanuele G. Dalla Torre   +3 more
doaj   +1 more source

Entanglement purification on quantum networks

Physical Review Research, 2023
We present an approach to entanglement purification on complex quantum network architectures, that is, how a quantum network built from repeaters with limited processing fidelity can purify and distribute entanglement between users.
Michelle Victora, Spyros Tserkis, Stefan Krastanov, Alexander Sanchez de la Cerda, Steven Willis, Prineha Narang   +5 more
doaj   +1 more source

Local approach to quantum entanglement [PDF]

, 2008
Quantum entanglement is the key property that makes quantum information theory different from its classical counterpart and is also a valuable physical resource with massive potential for technological applications.
Lin, H-C, Ho-Chih, L., Lin, H.-C.
core