Results 31 to 40 of about 1,072,835 (287)

Relativistic Quantum Communication [PDF]

open access: yes, 2013
In this Ph.D. thesis, I investigate the communication abilities of non-inertial observers and the precision to which they can measure parametrized states.
Hosler, Dominic
core   +6 more sources

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

open access: yes, 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 ENTANGLEMENT IN THE MULTIVERSE [PDF]

open access: yesЖурнал Экспериментальной и Теоретической Физики, 2014
In this paper it is shown that the quantum state of a multiverse made up of classically disconnected regions of the space-time, whose dynamical evolution is dominated by a homogeneous and isotropic fluid, is given by a squeezed state. These are typical quantum states that have no classical counterpart and, therefore, they allow us to analyze the ...
Robles-Pérez, Salvador   +1 more
openaire   +3 more sources

Entanglement cost of quantum channels [PDF]

open access: yes2012 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   +3 more
openaire   +4 more sources

How discord underlies the noise resilience of quantum illumination

open access: yesNew 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   +4 more
doaj   +1 more source

Entanglement of quantum evolutions [PDF]

open access: yesPhysical Review A, 2001
4 Pages, RevTeX. Version accepted by Phys. Rev. A (Rapid Comm.)
openaire   +2 more sources

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

open access: yesnpj 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   +4 more
doaj   +1 more source

A Quantum Router For The Entangled Web [PDF]

open access: yesInformation Systems Frontiers, 2019
Qubit transmission protocols are presently point-to-point, and thus restrictive in their functionality. A quantum router is necessary for the quantum Internet to become a reality. We present a quantum router design based on teleportation, as well as mechanisms for entangled pair management. The prototype was validated using a quantum simulator.
Bernardo A. Huberman, Bob Lund
openaire   +2 more sources

Noncommutative metasurfaces enabled diverse quantum path entanglement of structured photons

open access: yesOpto-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   +7 more
doaj   +1 more source

Quantum capacities for entanglement networks [PDF]

open access: yes2016 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   +3 more
openaire   +3 more sources

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