Results 31 to 40 of about 279,013 (291)

Practical advantage of quantum machine learning in ghost imaging

open access: yesCommunications Physics, 2023
Demonstrating the practical advantage of quantum computation remains a long-standing challenge whereas quantum machine learning becomes a promising application that can be resorted to.
Tailong Xiao   +4 more
doaj   +1 more source

Localization and diffusion in Ising-type quantum networks [PDF]

open access: yes, 2001
We investigate the effect of phase randomness in Ising-type quantum networks. These networks model a large class of physical systems. They describe micro- and nanostructures or arrays of optical elements such as beam splitters (interferometers) or ...
D. Bouwmeester   +19 more
core   +1 more source

Two-particle quantum correlations in stochastically-coupled networks [PDF]

open access: yes, 2019
Quantum walks in dynamically-disordered networks have become an invaluable tool for understanding the physics of open quantum systems. In this work, we introduce a novel approach to describe the dynamics of indistinguishable particles in noisy quantum ...
Benet, Luis   +6 more
core   +4 more sources

Intelligent certification for quantum simulators via machine learning

open access: yesnpj Quantum Information, 2022
Quantum simulation is a technology of using controllable quantum systems to study new quantum phases of matter. Certification for quantum simulators is a challenging problem whereas identification and properties estimation are two crucial approaches that
Tailong Xiao   +4 more
doaj   +1 more source

Theoretical framework for quantum networks

open access: yes, 2009
We present a framework to treat quantum networks and all possible transformations thereof, including as special cases all possible manipulations of quantum states, measurements, and channels, such as, e.g., cloning, discrimination, estimation, and ...
A. S. Holevo   +11 more
core   +1 more source

Toward incompatible quantum limits on multiparameter estimation

open access: yesNature Communications, 2023
In quantum multiparameter estimation, achieving the best precision for each parameter is hindered by the Heisenberg principle. Here, the authors demonstrate how to mitigate this problem by using appropriate probe states.
Binke Xia   +4 more
doaj   +1 more source

Complex Quantum Network Geometries: Evolution and Phase Transitions

open access: yes, 2015
Networks are topological and geometric structures used to describe systems as different as the Internet, the brain or the quantum structure of space-time.
Bianconi, Ginestra   +2 more
core   +1 more source

Designing a quantum network protocol [PDF]

open access: yesProceedings of the 16th International Conference on emerging Networking EXperiments and Technologies, 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. A functional network is more than just the physical hardware, yet work on scalable quantum network systems is in its infancy. In this paper we present a quantum network protocol designed
Kozlowski, Wojciech   +2 more
openaire   +3 more sources

Path Selection for Quantum Repeater Networks

open access: yes, 2012
Quantum networks will support long-distance quantum key distribution (QKD) and distributed quantum computation, and are an active area of both experimental and theoretical research.
A Basu   +50 more
core   +1 more source

Quantum Network Coding [PDF]

open access: yes, 2007
Since quantum information is continuous, its handling is sometimes surprisingly harder than the classical counterpart. A typical example is cloning; making a copy of digital information is straightforward but it is not possible exactly for quantum information. The question in this paper is whether or not quantum network coding is possible.
Masahito Hayashi   +4 more
openaire   +5 more sources

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