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- Ørsted (Denmark)DK26 papers
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45 papers · 1 filter
Bends and splitters in graphene nanoribbon waveguides
Xiaolong Zhu, Wei Yan, N. Asger Mortensen +1
We investigate the performance of bends and splitters in graphene nanoribbon waveguides. Although the graphene waveguides are lossy themselves, we show that bends and splitters do…
Conventional and Acoustic Surface Plasmons on Noble Metal Surfaces: A Time-dependent Density Functional Theory Study
Jun Yan, Karsten W. Jacobsen, Kristian S. Thygesen
First-principles calculations of the conventional and acoustic surface plasmons (CSPs and ASPs) on the (111) surfaces of Cu, Ag, and Au are presented. The effect of interband…
Few-view single photon emission computed tomography (SPECT) reconstruction based on a blurred piecewise constant object model
Paul A Wolf, Jakob H Jørgensen, Taly G Schmidt +1
A sparsity-exploiting algorithm intended for few-view Single Photon Emission Computed Tomography (SPECT) reconstruction is proposed and characterized. The algorithm models the obje…
Displacement-enhanced entanglement distillation of single-mode-squeezed entangled states
Anders Tipsmark, Jonas S. Neergaard-Nielsen, Ulrik L. Andersen
It has been shown that entanglement distillation of Gaussian entangled states by means of local photon subtraction can be improved by local Gaussian transformations. Here we show t…
X-ray diffraction observation of charge density wave order at zero magnetic field in ortho-II YBaCuO
E. Blackburn, J. Chang, M. Hucker +10
X-ray diffraction measurements show that the high-temperature superconductor YBaCuO, with ortho-II oxygen order, has charge density wave order (CDW) in the absence…
On the Dynamics of the Fermi-Bose Model
M. Ogren, M. Carlsson
We consider the exponential matrix representing the dynamics of the Fermi-Bose model in an undepleted bosonic field approximation. A recent application of this model is molecular d…