@article{4365,
author = {Belobo, D. Belobo and Meier, Torsten},
issn = {2045-2322},
journal = {Scientific Reports},
number = {1},
publisher = {Springer Nature},
title = {{Exotic complexes in one-dimensional Bose-Einstein condensates with spin-orbit coupling}},
doi = {10.1038/s41598-018-22008-2},
volume = {8},
year = {2018},
}
@inproceedings{4411,
abstract = {While a lot of research in distributed computing has covered solutions for self-stabilizing computing and topologies, there is far less work on self-stabilization for distributed data structures.
Considering crashing peers in peer-to-peer networks, it should not be taken for granted that a distributed data structure remains intact.
In this work, we present a self-stabilizing protocol for a distributed data structure called the hashed Patricia Trie (Kniesburges and Scheideler WALCOM'11) that enables efficient prefix search on a set of keys.
The data structure has a wide area of applications including string matching problems while offering low overhead and efficient operations when embedded on top of a distributed hash table.
Especially, longest prefix matching for $x$ can be done in $\mathcal{O}(\log |x|)$ hash table read accesses.
We show how to maintain the structure in a self-stabilizing way.
Our protocol assures low overhead in a legal state and a total (asymptotically optimal) memory demand of $\Theta(d)$ bits, where $d$ is the number of bits needed for storing all keys.},
author = {Knollmann, Till and Scheideler, Christian},
booktitle = {Proceedings of the 20th International Symposium on Stabilization, Safety, and Security of Distributed Systems (SSS)},
editor = {Izumi, Taisuke and Kuznetsov, Petr},
keyword = {Self-Stabilizing, Prefix Search, Distributed Data Structure},
location = {Tokyo},
publisher = {Springer, Cham},
title = {{A Self-Stabilizing Hashed Patricia Trie}},
doi = {10.1007/978-3-030-03232-6_1},
volume = {11201},
year = {2018},
}
@inproceedings{4416,
author = {Brassat, Katharina and Riedl, Thomas and Lindner, Jörg},
location = {Heraklion (Greece)},
title = {{Self-assembled Surface Patterns for Controlled Nanoparticle Placement and Improved Semiconductor Heteroepitaxy}},
year = {2018},
}
@article{4442,
author = {Riedl, Thomas and Lindner, Jörg},
journal = {submitted to Phys. Rev. Mat.},
title = {{Stability of Heteroepitaxial Coherent Growth Modes on Nanowire Radial Surfaces}},
year = {2018},
}
@inproceedings{4447,
author = {Riedl, Thomas and Bürger, Julius and Kunnathully, Vinay and Wiegand, Marie and Duschik, K. and Ramermann, D. and Ennen, I. and Hertle, Y. and Schaper, Mirko and Hellweg, T. and Hütten, A. and Lindner, Jörg},
location = {Dortmund (Germany)},
title = {{Nanostructure Research using Transmission Electron Microscopy at the new OWL Analytic Centre}},
year = {2018},
}
@inproceedings{4579,
abstract = {Semi-guided waves confined in dielectric slab waveguides are being considered for oblique angles of propagation. If the waves encounter a linear discontinuity of (mostly) arbitrary shape and extension, a variant of Snell's law applies, separately for each pair of incoming and outgoing modes. Depending on the effective indices involved, and on the angle of incidence, power transfer to specific outgoing waves can be allowed or forbidden. In particular, critical angles of incidence can be identified, beyond which any power transfer to non-guided waves is forbidden, i.e. all radiative losses are suppressed. In that case the input power is carried away from the discontinuity exclusively by reflected semi-guided waves in the input slab, or by semi-guided waves that are transmitted into other outgoing slab waveguides. Vectorial equations on a 2-D cross sectional domain apply. These are formally identical to the equations that govern the eigenmodes of 3-D channel waveguides. Here, however, these need to be solved not as an eigenvalue problem, but as an inhomogeneous problem with a right-hand-side that is given by the incoming semi-guided wave, and subject to transparent boundary conditions. The equations resemble a standard 2-D Helmholtz problem, with an effective permittivity in place of the actual relative permittivity. Depending on the properties of the incoming wave, including the angle of incidence, this effective permittivity can become locally negative, causing the suppression of propagating outgoing waves. A series of high-contrast example configurations are discussed, where these effects lead to - in some respects - quite surprising transmission characteristics.},
author = {Hammer, Manfred and Ebers, Lena and Hildebrandt, Andre and Alhaddad, Samer and Förstner, Jens},
booktitle = {2018 IEEE 17th International Conference on Mathematical Methods in Electromagnetic Theory (MMET)},
isbn = {9781538654385},
keyword = {tet_topic_waveguides},
publisher = {IEEE},
title = {{Oblique Semi-Guided Waves: 2-D Integrated Photonics with Negative Effective Permittivity}},
doi = {10.1109/mmet.2018.8460455},
year = {2018},
}
@inproceedings{4581,
author = {Grynko, Yevgen and Förstner, Jens},
booktitle = {2018 IEEE 17th International Conference on Mathematical Methods in Electromagnetic Theory (MMET)},
isbn = {9781538654385},
keyword = {tet_topic_numerics, tet_topic_shg},
publisher = {IEEE},
title = {{Application of the Discontinuous Galerkin Time Domain Method in Nonlinear Nanoplasmonics}},
doi = {10.1109/mmet.2018.8460261},
year = {2018},
}
@techreport{4980,
author = {Gilroy, Bernard Michael and Peitz, Christian and Stöckmann, Nico and Golderbein, Alexander},
title = {{Incentives for the finance sector: How the ECB affects banks' business assembling}},
year = {2018},
}
@inproceedings{4668,
author = {Forstinger, Sarah and Feng, Yuanhua and Peitz, Christian},
booktitle = {Book of Abstracts},
location = {Paderborn, Germany},
pages = {17},
title = {{Forecasting Non-Negative Financial Processes Using Different Parametric and Semi-Parametric ACD-Type Models}},
year = {2018},
}
@article{4769,
abstract = {In recent years, Raman spectroscopy has been used to visualize and analyze ferroelectric domain structures.
The technique makes use of the fact that the intensity or frequency of certain phonons is strongly influenced
by the presence of domain walls. Although the method is used frequently, the underlying mechanism responsible
for the changes in the spectra is not fully understood. This inhibits deeper analysis of domain structures based
on this method. Two different models have been proposed. However, neither model completely explains all
observations. In this work, we have systematically investigated domain walls in different scattering geometries
with Raman spectroscopy in the common ferroelectric materials used in integrated optics, i.e., KTiOPO4,
LiNbO3, and LiTaO3. Based on the two models, we can demonstrate that the observed contrast for domain
walls is in fact based on two different effects. We can identify on the one hand microscopic changes at the
domain wall, e.g., strain and electric fields, and on the other hand a macroscopic change of selection rules at the
domain wall. While the macroscopic relaxation of selection rules can be explained by the directional dispersion
of the phonons in agreement with previous propositions, the microscopic changes can be explained qualitatively
in terms of a simplified atomistic model.},
author = {Rüsing, M. and Neufeld, S. and Brockmeier, J. and Eigner, C. and Mackwitz, P. and Spychala, K. and Silberhorn, C. and Schmidt, W. G. and Berth, Gerhard and Zrenner, Artur and Sanna, S.},
issn = {2475-9953},
journal = {Physical Review Materials},
number = {10},
publisher = {American Physical Society (APS)},
title = {{Imaging of 180∘ ferroelectric domain walls in uniaxial ferroelectrics by confocal Raman spectroscopy: Unraveling the contrast mechanism}},
doi = {10.1103/physrevmaterials.2.103801},
volume = {2},
year = {2018},
}