Zobrazeno 1 - 10
of 21
pro vyhledávání: '"Niklas Teichmann"'
Autor:
Max Kießling, Niklas Teichmann, Erhard Rahm, André Petermann, Martin Junghanns, Gomez Kevin A
Publikováno v:
Proceedings of the VLDB Endowment. 11:2006-2009
We demonstrate G radoop , an open source framework that combines and extends features of graph database systems with the benefits of distributed graph processing. Using a rich graph data model and powerful graph operators, users can declaratively exp
Publikováno v:
International Journal of Hydrogen Energy. 43:1634-1642
Hydrogen diffusion in thin magnesium films in lateral film direction is studied by stepwise electrochemical loading via the change in optical light transmission (‘electrochemical hydrogenography’) during the dihydride formation. During the first
Autor:
Gomez Kevin A, André Petermann, Stephan Kemper, Erhard Rahm, Martin Junghanns, Niklas Teichmann
Publikováno v:
ICDM Workshops
Complex data analytics that involve data mining often comprise not only a single algorithm but also further data processing steps, for example, to restrict the search space or to filter the result. We demonstrate graph mining with Gradoop, the first
Publikováno v:
NDA@SIGMOD
Graphs are an intuitive way to model complex relationships between real-world data objects. Thus, graph analytics plays an important role in research and industry. As graphs often reflect heterogeneous domain data, their representation requires an ex
Autor:
Niklas Teichmann, Dennis Hinrichs
Publikováno v:
The European Physical Journal B. 71:219-223
Recently precise results for the boundary between the Mott insulator phase and the superfluid phase of the homogeneous Bose-Hubbard model have become available for arbitrary integer filling factor g and any lattice dimension d > 1. We use these data
Fractional photon-assisted tunneling is investigated both analytically and numerically for few interacting ultra-cold atoms in the double-wells of an optical superlattice. This can be realized experimentally by adding periodic shaking to an existing
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::abb910080100e0efcb8a1d0fbf7bc7ca
Publikováno v:
Physical Review A. 82
In a parameter regime for which the mean-field (Gross-Pitaevskii) dynamics becomes chaotic, mesoscopic quantum superpositions in phase space can occur in a double-well potential which is shaken periodically. For experimentally realistic initial state
Publikováno v:
Physical Review B. 79
We carry out a perturbative analysis, of high order in the tunneling parameter, of the ground state of the homogeneous Bose-Hubbard model in the Mott insulator phase. This is made possible by a diagrammatic process chain approach, derived from Kato's
Half-integer photon-resonances in a periodically shaken double well are investigated on the level of the N-particle quantum dynamics. Contrary to non-linear mean-field equations, the linear N-particle Schrodinger equation does not contain any non-lin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e2925e4f765c7f7284a0c2d9fa94739f
http://arxiv.org/abs/0905.2838
http://arxiv.org/abs/0905.2838
Autor:
Christoph Weiss, Niklas Teichmann
A recent publication [Phys. Rev. Lett. 100, 140408 (2008)] shows that there is a relation between mean-field chaos and multi-particle entanglement for BECs in a periodically shaken double well. 'Schrodinger-cat' like mesoscopic superpositions in phas
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8e0d0b408469386f9587f6118945820f