Auflistung Fakultät für Mathematik und Physik nach Titel

Auflistung Fakultät für Mathematik und Physik nach Titel

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  • A Bayesian estimation method for variational phase-field fracture problems 
    Khodadadian, Amirreza; Noii, Nima; Parvizi, Maryam; Abbaszadeh, Mostafa; Wick, Thomas; Heitzinger, Clemens (Berlin : Springer, 2020)
    In this work, we propose a parameter estimation framework for fracture propagation problems. The fracture problem is described by a phase-field method. Parameter estimation is realized with a Bayesian approach. Here, the ...
  • A Biomass-Based Integral Approach Enables Li-S Full Pouch Cells with Exceptional Power Density and Energy Density 
    Liu, Yuping; Barnscheidt, Yvo; Peng, Manhua; Bettels, Frederik; Li, Taoran; He, Tao; Ding, Fei; Zhang, Lin (Weinheim : Wiley-VCH, 2021)
    Lithium-sulfur (Li-S) batteries, as part of the post-lithium-ion batteries (post-LIBs), are expected to deliver significantly higher energy densities. Their power densities, however, are today considerably worse than that ...
  • A GIT Construction of Degenerations of Hilbert Schemes of Points 
    Gulbrandsen, Martin G.; Halle, Lars H.; Hulek, Klaus (Berlin : Deutsche Mathematiker-Vereinigung e.V., 2019)
    We present a Geometric Invariant Theory (GIT) con-struction which allows us to construct good projective degenerationsof Hilbert schemes of points for simple degenerations. A comparisonwith the construction of Li and Wu ...
  • A mixed finite element method for solving coupled wave equation of Kirchhoff type with nonlinear boundary damping and memory term 
    Parvizi, Maryam; Khodadadian, Amirreta; Eslahchi, M.R. (Chichester, West Sussex : Wiley, 2021)
    This paper is concerned with the numerical approximation of the solution of the coupled wave equation of Kirchhoff type with nonlinear boundary damping and memory term using a mixed finite element method. The Raviart-Thomas ...
  • A nested multi-scale system implemented in the large-eddy simulation model PALM model system 6.0 
    Hellsten, Antti; Ketelsen, Klaus; Sühring, Matthias; Auvinen, Mikko; Maronga, Björn; Knigge, Christoph; Barmpas, Fotios; Tsegas, Georgios; Moussiopoulos, Niolas; Raasch, Siegfried (Katlenburg-Lindau : Copernicus, 2021)
    Large-eddy simulation (LES) provides a physically sound approach to study complex turbulent processes within the atmospheric boundary layer including urban boundary layer flows. However, such flow problems often involve a ...
  • A review of quantum cellular automata 
    Farrelly, Terry (Wien : Verein zur Förderung des Open Access Publizierens in den Quantenwissenschaften, 2020)
    Discretizing spacetime is often a natural step towards modelling physical systems. For quantum systems, if we also demand a strict bound on the speed of information propagation, we get quantum cellular automata (QCAs). ...
  • A robust potential-based contact force solution approach for discontinuous deformation analysis of irregular convex polygonal block/particle systems 
    Zheng, Fei; Zhuang, Xiaoying; Zheng, Hong; Jiao, Yu-Yong; Rabczuk, Timon (Berlin : Springer, 2020)
    Contact interaction of two bodies can be modeled using the penalty function approach while its accuracy and robustness are directly associated with the geometry of contact bodies. Particularly, in the research fields of ...
  • A scalable high-performance magnetic shield for very long baseline atom interferometry 
    Wodey, E.; Tell, D.; Rasel, E.M.; Schlippert, D.; Baur, R.; Kissling, U.; Kölliker, B.; Lorenz, M.; Marrer, M.; Schläpfer, U.; Widmer, M.; Ufrecht, C.; Stuiber, S.; Fierlinger, P. (College Park, MD : American Institute of Physics, 2020)
    We report on the design, construction, and characterization of a 10 m-long high-performance magnetic shield for very long baseline atom interferometry. We achieve residual fields below 4 nT and longitudinal inhomogeneities ...
  • A space-based quantum gas laboratory at picokelvin energy scales 
    Gaaloul, Naceur; Meister, Matthias; Corgier, Robin; Pichery, Annie; Boegel, Patrick; Herr, Waldemar; Ahlers, Holger; Charron, Eric; Williams, Jason R.; Thompson, Robert J.; Schleich, Wolfgang P.; Rasel, Ernst M. ([London] : Nature Publishing Group UK, 2022)
    Ultracold quantum gases are ideal sources for high-precision space-borne sensing as proposed for Earth observation, relativistic geodesy and tests of fundamental physical laws as well as for studying new phenomena in ...
  • A systematic review of participatory scenario planning to envision mountain social-ecological systems futures 
    Thorn, Jessic P. R.; Klein, Julia A.; Steger, Cara; Hopping, Kelly A.; Capitani, Claudia; Tucker, Catherine M.; Nolin, Anne W.; Reid, Robin S.; Seidl, Roman; Chitale, Vishwas .S.; Marchant, Robert (Wolfville, Nova Scotia : Resilience Alliance, 2020)
    Mountain social-ecological systems (MtSES) provide crucial ecosystem services to over half of humanity. However, populations living in these highly varied regions are now confronted by global change. It is critical that ...
  • A transportable quantum gravimeter employing delta-kick collimated Bose–Einstein condensates 
    Heine, Nina; Matthias, Jonas; Sahelgozin, Maral; Herr, Waldemar; Abend, Sven; Timmen, Ludger; Müller, Jürgen; Rasel, Ernst Maria (Berlin [u.a.] : Springer, 2020)
    Abstract: Gravimetry with low uncertainty and long-term stability opens up new fields of research in geodesy, especially in hydrology and volcanology. The main limitations in the accuracy of current generation cold atom ...
  • A-free rigidity and applications to the compressible Euler system 
    Chiodaroli, Elisabetta; Feireisl, Eduard; Kreml, Ondrej; Wiedemann, Emil (Heidelberg : Springer Verlag, 2017)
    Can every measure-valued solution to the compressible Euler equations be approximated by a sequence of weak solutions? We prove that the answer is negative: generalizing a well-known rigidity result of Ball and James to a ...
  • A-posteriori error estimates for linear exterior problems via mixed-FEM and DTN mappings 
    Barrientos, Mauricio A.; Gatica, Gabriel N.; Maischak, Matthias (Cambridge : Cambridge University Press, 2002)
    In this paper we combine the dual-mixed finite element method with a Dirichlet-to-Neumann mapping (given in terms of a boundary integral operator) to solve linear exterior transmission problems in the plane. As a model we ...
  • Ab initio prediction of semiconductivity in a novel two-dimensional Sb2X3 (X= S, Se, Te) monolayers with orthorhombic structure 
    Bafekry, A.; Mortazavi, B.; Faraji, M.; Shahrokhi, M.; Shafique, A.; Jappor, H.R.; Nguyen, C.; Ghergherehchi, M.; Feghhi, S.A.H. (London : Nature Publishing Group, 2021)
    Sb 2S 3 and Sb 2Se 3 are well-known layered bulk structures with weak van der Waals interactions. In this work we explore the atomic lattice, dynamical stability, electronic and optical properties of Sb 2S 3, Sb 2Se 3 and ...
  • Abelian torsion groups with a pseudocompact group topology 
    Comfort, W.W.; Remus, Dieter (Berlin : De Gruyter, 1994)
    Two questions are posed: (a) Which Abelian torsion groups admit a PGT (pseudocompact group topology)? (b) If an Abelian torsion group G admits a PGT, for which cardinal numbers a may such a topology F be chosen so that the ...
  • About the production of residual nuclides by neutron-induced reactions up to 180 MeV 
    Hansmann, David (Hannover : Gottfried Wilhelm Leibniz Universität Hannover, 2010)
    [no abstract]
  • Absence of Localization in Two-Dimensional Clifford Circuits 
    Farshi, Tom; Richter, Jonas; Toniolo, Daniele; Pal, Arijeet; Masanes, Lluis (College Park, MD : American Physical Society, 2023)
    We analyze a Floquet circuit with random Clifford gates in one and two spatial dimensions. By using random graphs and methods from percolation theory, we prove in the two-dimensional (2D) setting that some local operators ...
  • Absorbing boundaries in the mean-field approximation 
    Jhala, Chirag; Dreissigacker, Ingo; Lein, Manfred (College Park, MD : American Physical Society, 2010)
    Absorbing boundaries in the mean-field approximation are investigated and applied to small systems interacting with strong laser fields. Two types of calculations are considered: (i) a variational approach with a complex ...
  • Absorption and multi-phonon quenching in nanocrystal doped SiO2 fibers 
    Steinke, Michael; Spelthann, Simon; Rühl, Axel; Ristau, Detlev (Washington, DC : Optica, 2021)
    SiO2 fibers doped with rare-earth-doped nanocrystals are promising to overcome the strong SiO2 multi-phonon quenching and could yield novel laser gain materials. So far, no attention has been paid to the question how well ...
  • Absorption Measurements of Periodically Poled Potassium Titanyl Phosphate (PPKTP) at 775 nm and 1550 nm 
    Steinlechner, Jessica; Ast, Stefan; Krueger, Christoph; Singh, Amrit Pal; Eberle, Tobias; Haendchen, Vitus; Schnabel, Roman (Basel : Mdpi Ag, 2013-01)
    The efficient generation of second-harmonic light and squeezed light requires non-linear crystals that have low absorption at the fundamental and harmonic wavelengths. In this work the photo-thermal self-phase modulation ...

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