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- Polish Academy of SciencesPL89 papers
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24 papers · 1 filter
Nuclear Spins in a Nanoscale Device for Quantum Information Processing
S. K. Ozdemir, A. Miranowicz, T. Ota +3
Coherent oscillations between any two levels from four nuclear spin states of I=3/2 have been demonstrated in a nanometre-scale NMR semiconductor device, where nuclear spins are al…
Exotic smooth structures and symplectic forms on closed manifolds
Boguslaw Hajduk, Aleksy Tralle
We give a short proof of the (known) result that there are no Kaehler structures on exotic tori. This yields a negative solution to a problem posed by Benson and Gordon. W discuss…
Model of light collimation by photonic crystal surface modes
Wojciech Smigaj
We propose a quantitative model explaining the mechanism of light collimation by leaky surface modes that propagate on a corrugated surface around the output of a photonic crystal…
Entanglement in the Majumdar-Ghosh model
Ravindra W. Chhajlany, Piotr Tomczak, Antoni Wojcik +1
We present an analysis of the entanglement characteristics in the Majumdar-Ghosh (MG) or - Heisenberg model. For a system consisting of up to 28 spins, there is a dev…
Transmission of correlated electrons through sharp domain walls in magnetic nanowires: a renormalization group approach
M. A. N. Araujo, V. K. Dugaev, V. R. Vieira +2
The transmission of correlated electrons through a domain wall in a ferromagnetic one dimensional system is studied theoretically in the limit of a domain wall width smaller or com…
Heat conduction and diffusion of hard disks in a narrow channel
Adam Lipowski, Dorota Lipowska
Using molecular dynamics we study heat conduction and diffusion of hard disks in one dimensional narrow channels. When collisions preserve momentum the heat conduction diverges…