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- University of CopenhagenDK449 papers
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7 papers · 2 filters
Field enhancement at metallic interfaces due to quantum confinement
Z. Fatih Öztürk, Sanshui Xiao, Min Yan +3
We point out an apparently overlooked consequence of the boundary conditions obeyed by the electric displacement vector at air-metal interfaces: the continuity of the normal compon…
Observation of non-Markovian dynamics of a single quantum dot in a micropillar cavity
K. H. Madsen, S. Ates, T. Lund-Hansen +4
We measure the detuning-dependent dynamics of a quasi-resonantly excited single quantum dot coupled to a micropillar cavity. The system is modeled with the dissipative Jaynes-Cummi…
Donut and dynamic polarization effects in proton channeling through carbon nanotubes
D. Borka, D. J. Mowbray, Z. L. Miskovic +2
We investigate the angular and spatial distributions of protons of the energy of 0.223 MeV after channeling through an (11,~9) single-wall carbon nanotube of the length of 0.2 m…
Plasmon excitations on a single-wall carbon nanotube by external charges: two-dimensional, two-fluid hydrodynamic model
D. J. Mowbray, S. Segui, J. Gervasoni +2
We present a quantization of the hydrodynamic model to describe the excitation of plasmons in a single-walled carbon nanotube by a fast point charge moving near its surface at an a…
Designing multifunctional chemical sensors using Ni and Cu doped carbon nanotubes
D. J. Mowbray, J. M. Garcia-Lastra, K. S. Thygesen +2
We demonstrate a "bottom up" approach to the computational design of a multifunctional chemical sensor. General techniques are employed for describing the adsorption coverage and r…
Influence of confining potentials on the exchange coupling in double quantum dots
Jesper G. Pedersen, Christian Flindt, Antti-Pekka Jauho +1
We report simple expressions for the exchange coupling in double quantum dots calculated within the Heitler-London and the Hund-Mulliken approximations using four different confini…