Results 31 to 40 of about 39,505 (312)

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
doaj   +1 more source

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, Bruno C. Coutinho, Francisco A. Monteiro, Yasser Omar   +3 more
doaj   +1 more source

Delayed-Choice Experiments and the Metaphysics of Entanglement [PDF]

, 2012
Delayed-choice experiments in quantum mechanics are often taken to undermine a realistic interpretation of the quantum state. More specifically, Healey has recently argued that the phenomenon of delayed-choice entanglement swapping is incompatible with ...
Egg, Matthias, Matthias Egg
core   +1 more source

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

Measurement-based quantum computing with a spin ensemble coupled to a stripline cavity [PDF]

, 2012
Recently, a new form of quantum memory was proposed. The storage medium is an ensemble of electron spins, coupled to a stripline cavity and an ancillary readout system.
Benjamin, Simon C., Benjamin, SC, Ping, Yuting, Gauger, EM, Ping, Y., Gauger, E.M., Gauger, Erik M.; id_orcid, Ping, Y, Benjamin, Simon, Benjamin, S.C.   +9 more
core   +1 more source

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, Stefano Pirandola, Jayne Thompson, Vlatko Vedral, Mile Gu   +4 more
doaj   +1 more source

QUANTUM ENTANGLEMENT AND SECRECY

International Journal of Modern Physics A, 2001
This was a talk given at the International Conference on Fundamental Sciences, Mathematics and Theoretical Physics, 13-17 March 2000. This talk provides a general introduction to the field of cryptography and touches upon the surface of many activities presently being pursued under the heading of quantum cryptography.
Exert, A, Oi, D K L, Alves, C M, Kwek, L C, Kaszlikowski, D   +4 more
openaire   +6 more sources

A quantum router architecture for high-fidelity entanglement flows in quantum networks

npj Quantum Information, 2022
The past decade has seen tremendous progress in experimentally realizing the building blocks of quantum repeaters. Repeater architectures with multiplexed quantum memories have been proposed to increase entanglement distribution rates, but an open ...
Yuan Lee, Eric Bersin, Axel Dahlberg, Stephanie Wehner, Dirk Englund   +4 more
doaj   +1 more source

Entanglement cost of quantum channels [PDF]

2012 IEEE International Symposium on Information Theory Proceedings, 2012
The entanglement cost of a quantum channel is the minimal rate at which entanglement (between sender and receiver) is needed in order to simulate many copies of a quantum channel in the presence of free classical communication. In this paper we show how to express this quantity as a regularised optimisation of the entanglement formation over states ...
Mario Berta, Matthias Christandl, Fernando G. S. L. Brandão, Stephanie Wehner   +3 more
openaire   +3 more sources

Imaging high-dimensional spatial entanglement with a camera [PDF]

, 2012
The light produced by parametric down-conversion shows strong spatial entanglement that leads to violations of EPR criteria for separability. Historically, such studies have been performed by scanning a single-element, single-photon detector across a ...
Leach, J., Boyd, R W, Tasca, D S, Boyd, R.W., Padgett, M J, Warburton, R.E., Agnew, M., Izdebski, Frauke, Warburton, Richard, Padgett, M.J., Edgar, M P, Buller, G.S., Agnew, M, Tasca, D.S., Izdebski, F., Edgar, M.P., Buller, Gerald Stuart, Leach, J   +17 more
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