Results 71 to 80 of about 862,574 (276)

Dual-path state reconstruction scheme for propagating quantum microwaves and detector noise tomography

open access: yes, 2010
Quantum state reconstruction involves measurement devices that are usually described by idealized models, but not known in full detail in experiments.
A. Baust   +10 more
core   +1 more source

Efficient RCS Computation Over a Broad Frequency Band Using Subdomain MoM and Chebyshev Approximation Technique

open access: yesIEEE Access, 2020
The analysis of the target's broadband electromagnetic scattering characteristics plays an important role in radar stealth and recognition areas. The traditional method of moments (MoM) needs to calculate the currents at each frequency point when ...
Xing Wang   +5 more
doaj   +1 more source

Phase Difference Based Precise Indoor Tracking of Common Mobile Devices Using an Iterative Holographic Extended Kalman Filter

open access: yesIEEE Open Journal of Vehicular Technology, 2022
The 3D indoor localization of low-cost standard mobile devices represents an important research topic. Since the implementation of ultra-wideband localization systems requires elaborated hardware, a localization concept based on phase-difference-of ...
Stefan Bruckner   +4 more
doaj   +1 more source

A classical statistical model for distributions of escape events in swept-bias Josephson junctions

open access: yes, 2012
We have developed a model for experiments in which the bias current applied to a Josephson junction is slowly increased from zero until the junction switches from its superconducting zero-voltage state, and the bias value at which this occurs is recorded.
A. J. Leggett   +5 more
core   +1 more source

Quantum teleportation of propagating quantum microwaves [PDF]

open access: yes, 2015
Propagating quantum microwaves have been proposed and successfully implemented to generate entanglement, thereby establishing a promising platform for the realisation of a quantum communication channel.
R. Di Candia   +9 more
semanticscholar   +1 more source

Microwave holograms and microwave reconstruction

open access: yesElectronics Letters, 1969
Microwave holographic reconstruction of the metal objects inside a purse was achieved by a nonscanning method. A microwave field was used for both constructing and reconstructing the holographic image. The visualisation of the microwave field was performed by both Polaroid and liquid-crystal techniques. The frequency used was 34.26GHz.
openaire   +2 more sources

Modeling microwave/electron-cloud interaction

open access: yes, 2013
Starting from the separate codes BI-RME and ECLOUD or PyECLOUD, we are developing a novel joint simulation tool, which models the combined effect of a charged particle beam and of microwaves on an electron cloud.
Mattes, M., Sorolla, E., Zimmermann, F.
core   +1 more source

Magnetization switching by current and microwaves [PDF]

open access: yes, 2015
We propose a theoretical model of magnetization switching in a ferromagnetic multilayer by both electric current and microwaves. The electric current gives a spin transfer torque on the magnetization, while the microwaves induce a precession of the ...
T. Taniguchi   +3 more
semanticscholar   +1 more source

High‐resolution inverse synthetic aperture radar imaging of satellites in space

open access: yesIET Radar, Sonar & Navigation
In view of the increasing number of space objects, comprehensive high‐quality space surveillance becomes ever more important. Radar is a powerful tool that, in addition to detection and tracking of objects, also enables spatially high‐resolution imaging ...
Simon Anger   +4 more
doaj   +1 more source

An omnidirectional retroreflector based on the transmutation of dielectric singularities

open access: yes, 2009
In the field of transformation optics, metamaterials mimic the effect of coordinate transformations on electromagnetic waves, creating the illusion that the waves are propagating through a virtual space.
Leonhardt, Ulf   +3 more
core   +1 more source

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