Zobrazeno 1 - 10
of 9 565
pro vyhledávání: '"Damgaard A"'
Autor:
Damgaard-Carstensen, Christopher, Yezekyan, Torgom, Brongersma, Mark L., Bozhevolnyi, Sergey I.
Ultrafast and highly efficient dynamic optical metasurfaces enabling truly spatiotemporal control over optical radiation are poised to revolutionize modern optics and photonics, but their practical realization remains elusive. In this work, we demons
Externí odkaz:
http://arxiv.org/abs/2412.01449
Autor:
Sneppen, Albert, Just, Oliver, Bauswein, Andreas, Damgaard, Rasmus, Watson, Darach, Shingles, Luke J., Collins, Christine E., Sim, Stuart A., Xiong, Zewei, Martinez-Pinedo, Gabriel, Soultanis, Theodoros, Vijayan, Vimal
The time until black hole formation in a binary neutron-star (NS) merger contains invaluable information about the nuclear equation of state (EoS) but has thus far been difficult to measure. We propose a new way to constrain the merger remnant's NS l
Externí odkaz:
http://arxiv.org/abs/2411.03427
Autor:
Sneppen, Albert, Damgaard, Rasmus, Watson, Darach, Collins, Christine E., Shingles, Luke, Sim, Stuart A.
Publikováno v:
A&A 692, A134 (2024)
The spectral features observed in kilonovae (KNe) reveal the elemental composition and the velocity structures of matter ejected from neutron star mergers. In the spectra of the kilonova AT2017gfo, a P Cygni line at about 1$\mu$m has been linked to S
Externí odkaz:
http://arxiv.org/abs/2407.12907
Autor:
Sneppen, Albert, Watson, Darach, Damgaard, Rasmus, Heintz, Kasper E., Vieira, Nicholas, Väisänen, Petri, Mahoro, Antoine
Publikováno v:
A&A 690, A398 (2024)
The spectral features in the optical/near-infrared counterparts of neutron star mergers (kilonovae, KNe), evolve dramatically on hour timescales. To examine the spectral evolution we compile a temporal series complete at all observed epochs from 0.5
Externí odkaz:
http://arxiv.org/abs/2404.08730
Autor:
Damgaard, Poul H., Lee, Kanghoon
Applying the quantum field theoretic perturbiner approach to Einstein gravity, we compute the metric of a Schwarzschild black hole order by order in perturbation theory. Using recursion, this calculation can be carried out in de Donder gauge to all o
Externí odkaz:
http://arxiv.org/abs/2403.13216
Autor:
Damgaard, Mads J.
We carry out a Dirac sea reinterpretation of a discretized version of the Hamiltonian of quantum electrodynamics (QED), and analyze the perturbed vacuum in the continuum limit. We argue that if certain operators can be shown to be the self-adjoint, t
Externí odkaz:
http://arxiv.org/abs/2312.10124
Autor:
Damgaard, Mads J.
We show that a simplified version of the Dirac interaction operator given by $\hat H_\mathrm{I} \propto \int d\mathbf{k}d\mathbf{p}(\hat a(\mathbf{k}) + \hat a^\dagger(-\mathbf{k})) \hat b^\dagger(\mathbf{p} + \mathbf{k}) \hat b(\mathbf{p})/\sqrt{|\m
Externí odkaz:
http://arxiv.org/abs/2311.12870
Autor:
Jeanette Finderup, Hilary L. Bekker, Nadia Thielke Albèr, Susanne Boel, Louise Engelbrecht Buur, Helle Sørensen von Essen, Anne Wilhøft Kristensen, Kristian Damgaard Lyng, Tina Wang Vedelø, Gitte Susanne Rasmussen, Pernille Christiansen Skovlund, Stine Rauff Søndergaard, Anik Giguère
Publikováno v:
BMC Medical Informatics and Decision Making, Vol 24, Iss 1, Pp 1-11 (2024)
Abstract Background Shared decision making in healthcare is a fundamental right for patients. Healthcare professionals' perception of their own abilities to enable shared decision making is crucial for implementing shared decision making within servi
Externí odkaz:
https://doaj.org/article/eb9d62f609fc4adab3ab7a95f9790009
Autor:
Damgaard, Cathrine, Eriksen, Trine Naja, Juodelyte, Dovile, Cheplygina, Veronika, Jiménez-Sánchez, Amelia
The advancement of machine learning algorithms in medical image analysis requires the expansion of training datasets. A popular and cost-effective approach is automated annotation extraction from free-text medical reports, primarily due to the high c
Externí odkaz:
http://arxiv.org/abs/2309.02244
By combining the KMOC-formalism with the exponential representation of the scattering matrix we show that the two-body scattering angle is given by the corresponding matrix element of the exponential representation. This holds to all orders in the Po
Externí odkaz:
http://arxiv.org/abs/2307.04746