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- Ørsted (Denmark)DK21 papers
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13 papers · 1 filter
A Stochastic Broadcast Pi-Calculus
Lei Song, Flemming Nielson, Bo Friis Nielsen
In this paper we propose a stochastic broadcast PI-calculus which can be used to model server-client based systems where synchronization is always governed by only one participant.…
Accelerated gradient methods for total-variation-based CT image reconstruction
Jakob Heide Jørgensen, Tobias Lindstrøm Jensen, Per Christian Hansen +3
Total-variation (TV)-based Computed Tomography (CT) image reconstruction has shown experimentally to be capable of producing accurate reconstructions from sparse-view data. In part…
Implementation of an Optimal First-Order Method for Strongly Convex Total Variation Regularization
Tobias Lindstrøm Jensen, Jakob Heide Jørgensen, Per Christian Hansen +1
We present a practical implementation of an optimal first-order method, due to Nesterov, for large-scale total variation regularization in tomographic reconstruction, image deblurr…
Linear density response function in the projector-augmented wave method: Applications to solids, surfaces, and interfaces
Jun Yan, Jens. J. Mortensen, Karsten W. Jacobsen +1
We present an implementation of the linear density response function within the projector-augmented wave (PAW) method with applications to the linear optical and dielectric propert…
Probing statistical properties of Anderson localization with quantum emitters
Stephan Smolka, Henri Thyrrestrup, Luca Sapienza +5
Wave propagation in disordered media can be strongly modified by multiple scattering and wave interference. Ultimately the so-called Anderson-localized regime is reached when the w…
Laser-like vibrational instability in rectifying molecular conductors
Jing-Tao Lü, Per Hedegård, Mads Brandbyge
We study the damping of molecular vibrations due to electron-hole pair excitations in donor-acceptor(D-A) type molecular rectifiers. At finite voltage additional non-equilibrium el…