Auflistung Fakultät für Mathematik und Physik nach Titel

Auflistung Fakultät für Mathematik und Physik nach Titel

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  • Disturbed witnesses in quantum complexity theory 
    Dziemba, Friederike Anna (Hannover : Institutionelles Repositorium der Leibniz Universität Hannover, 2019)
    QMA is the complexity class of computational problems that are efficiently verifiable by a quantum algorithm with the help of a witness in contrast to the smaller class BQP of problems efficiently solvable by a quantum ...
  • Divergences in QFT on the Noncommutative Minkowski space with Grosse-Wulkenhaar potential 
    Zahn, Jochen (Trieste : International School for Advanced Studies, 2010)
    We study quantum field theory on the two-dimensional Noncommutative Minkoswki space with a Grosse-Wulkenhaar potential. We explicitly construct the retarded propagator and show that it is not a tempered distribution. This ...
  • DMRG method for the linear DC-conductance of one-dimensional correlated systems 
    Bischoff, Jan-Moritz (Hannover : Institutionelles Repositorium der Leibniz Universität Hannover, 2019)
    Interesting discoveries have recently been made in the area of solid state physics and nano technology regarding electronic systems that are confined to reduced spatial dimensions. Under these circumstances the quantum ...
  • Does it make sense to talk about NΔ phase shifts? 
    Garcilazo, H.; Mizutani, T.; Pea, M.T.; Sauer, Peter Ulrich (College Park, MD : American Physical Society, 1990)
    The question of whether one can consistently define and extract nucleon-delta scattering parameters, phase shifts, and inelasticities from the partial-wave NN→NΔ amplitudes is discussed. We have studied the unitarity ...
  • Domain adaptation based transfer learning approach for solving PDEs on complex geometries 
    Chakraborty, Ayan; Anitescu, Cosmin; Zhuang, Xiaoying; Rabczuk, Timon (London : Springer, 2022)
    In machine learning, if the training data is independently and identically distributed as the test data then a trained model can make an accurate predictions for new samples of data. Conventional machine learning has a ...
  • Doob-Martin-Theorie diskreter Markov-Ketten : Struktur und Anwendungen 
    Hagemann, Klaas (Hannover : Gottfried Wilhelm Leibniz Universität Hannover, 2016)
    [no abstract]
  • Doping of a Spin-1 Chain: An Integrable Model 
    Frahm, Holger; Pfannmüller, M.P.; Tsvelik, A.M. (College Park (Maryland) : American Physical Society, 1998)
    An exactly soluble model describing a spin S=1 antiferromagnetic chain doped with mobile S=1/2 carriers is constructed. In its continuum limit the undoped state is described by three gapless Majorana fermions composing the ...
  • Doping-induced magnetization plateaus 
    Frahm, Holger; Sobiella, Constantin (College Park (Maryland) : American Physical Society, 1999)
    The low-temperature magnetization process of antiferromagnetic spin- S chains doped with mobile spin- (S−1/2) carriers is studied in an exactly solvable model. For sufficiently high magnetic fields the system is in a ...
  • Doppler Cooling and Trapping on Forbidden Transitions 
    Binnewies, T.; Wilpers, G.; Sterr, U.; Riehle, F.; Helmcke, J.; Mehlstäubler, T.E.; Rasel, Ernst Maria; Ertmer, Wolfgang (American Physical Society, 2001)
    Ultracold atoms at temperatures close to the recoil limit have been achieved by extending Doppler cooling to forbidden transitions. A cloud of 40Ca atoms has been cooled and trapped to a temperature as low as 6μK by operating ...
  • Double-slit photoelectron interference in strong-field ionization of the neon dimer 
    Kunitski, Maksim; Eicke, Nicolas; Huber, Pia; Köhler, Jonas; Zeller, S.; Voigtsberger, J.; Schlott, Nikolai; Henrichs, Kevin; Sann, H.; Trinter, F.; Schmidt, L.; Kalinin, Anton; Schöffler, M.; Jahnke, T.; Lein, Manfred; Dörner, R. (London : Nature Publishing Group, 2019)
    Wave-particle duality is an inherent peculiarity of the quantum world. The double-slit experiment has been frequently used for understanding different aspects of this fundamental concept. The occurrence of interference ...
  • Dual conformal constraints and infrared equations from global residue theorems in N=4 SYM theory 
    Broedel, Johannes; He, Song (New York, NY : Springer International Publishing, 2010)
    Infrared equations and dual conformal constraints arise as consistency conditions on loop amplitudes in N=4 super Yang-Mills theory. These conditions are linear relations between leading singularities, which can be computed ...
  • Dual infrared limits of 6d N=(2,0)theory 
    Lechtenfeld, Olaf; Popov, Alexander D. (Amsterdam : Elsevier B.V., 2019)
    Compactifying type A N−1 6d N=(2,0)supersymmetric CFT on a product manifold M 4 ×Σ 2 =M 3 ×S˜ 1 ×S 1 ×I either over S 1 or over S˜ 1 leads to maximally supersymmetric 5d gauge theories on M 4 ×I or on M 3 ×Σ 2 , respectively. ...
  • Dual-dual formulations for frictional contact problems in mechanics 
    Andres, Michael (Hannover : Gottfried Wilhelm Leibniz Universität Hannover, 2010)
    [no abstract]
  • A Dual-Species Atom Interferometer Payload for Operation on Sounding Rockets 
    Elsen, Michael; Piest, Baptist; Adam, Fabian; Anton, Oliver; Arciszewski, Paweł; Bartosch, Wolfgang; Becker, Dennis; Bleeke, Kai; Böhm, Jonas; Boles, Sören; Döringshoff, Klaus; Guggilam, Priyanka; Hellmig, Ortwin; Imwalle, Isabell; Kanthak, Simon; Kürbis, Christian; Koch, Matthias; Lachmann, Maike Diana; Mihm, Moritz; Müntinga, Hauke; Nepal, Ayush Mani; Oberschulte, Tim; Ohr, Peter; Papakonstantinou, Alexandros; Prat, Arnau; Reichelt, Christian; Sommer, Jan; Spindeldreier, Christian; Warner, Marvin; Wendrich, Thijs; Wenzlawski, André; Blume, Holger; Braxmaier, Claus; Lüdtke, Daniel; Peters, Achim; Rasel, Ernst Maria; Sengstock, Klaus; Wicht, Andreas; Windpassinger, Patrick; Grosse, Jens (Heidelberg : Springer, 2023)
    We report on the design and the construction of a sounding rocket payload capable of performing atom interferometry with Bose-Einstein condensates of 41 K and 87 Rb. The apparatus is designed to be launched in two consecutive ...
  • Dynamic coherent beam combining based on a setup of microlens arrays 
    Prossotowicz, Maike; Heimes, Andreas; Flamm, Daniel; Jansen, Florian; Otto, Hans-Jürgen; Budnicki, Aleksander; Morgner, Uwe; Killi, Alexander (Bellingham : SPIE, 2020)
    A novel optical concept is introduced with standard components for highly efficient coherent beam combining a system of (N x N) beams. In a proof-of-principle experiment a well-defined setup with microlens arrays (MLAs) ...
  • Dynamic Optimization of Gas Transmission Networks for Storage of Renewable Energy 
    Thiedau, Jan (Hannover : Institutionelles Repositorium der Leibniz Universität Hannover, 2018)
    To ensure security of supply in the presence of highly volatile generation of renewable electric energy, extensive storage is required. In this thesis the application of mathematical optimization methods to gas transmission ...
  • Dynamic photoluminescence lifetime imaging for injectiondependent lifetime measurements 
    Herlufsen, Sandra; Bothe, Karsten; Brendel, Rolf; Schmidt, Jan (Amsterdam : Elsevier, 2014)
    We investigate the impact of an injection-dependent carrier lifetime in crystalline silicon on dynamic photoluminescence lifetime imaging (dynamic PLI). Although the dynamic lifetime approach is a technique that evaluates ...
  • Dynamical behavior of ultracold atomic gases 
    Pedri, Paolo (Hannover : Universität, 2005)
    [no abstract]
  • Dynamical scaling of the quantum Hall plateau transition 
    Hohls, Frank; Zeitler, U.; Haug, Rolf J.; Meisels, R.; Dybko, K.; Kuchar, F. (College Park, MD : American Physical Society, 2002)
    The dynamical scaling of the quantum Hall plateau phase transition in the frequency range 0.1-55 GHz was examined. A universal scaling function was observed, yielding a dynamical exponent 0.9 ± 0.2. The universal behavior ...
  • Dynamical tuning of a signal recycled gravitational wave detector : dynamical effects and sensitivity gain of dynamical tuning during detection of a chirp signal from compact binary coalescences 
    Simakov, Dmitry (Hannover : Gottfried Wilhelm Leibniz Universität Hannover, 2014)
    [no abstract]

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