Blar i Department of Mathematics and Physics (TN-IMF) på tittel

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    • T3-invariant heterotic Hull-Strominger solutions 

      Svanes, Eirik Eik; Acharya, Bobby S.; Kinsella, Alex (Peer reviewed; Journal article, 2021-01)
      We consider the heterotic string on Calabi-Yau manifolds admitting a Strominger-Yau-Zaslow fibration. Upon reducing the system in the T3-directions, the Hermitian Yang-Mills conditions can then be reinterpreted as a complex ...

    • Tales from Wonderland 

      Normann, Ben David (Doctoral thesis, 2020-06)
      Knowing that the Universe is quite isotropic, one may, as already discussed in Chapter 1, wonder how likely such a Universe is. We take the following research question. Question 1. Is the asymptotic future of a cosmology ...

    • The card game SET and finite geometry 

      Abrahamsen, Tiril; Eriksen, Morten (Bachelor thesis, 2023)
      This thesis explores the underlying mathematics of the card game SET, which is a fast-paced pattern recognition game played with 81 cards. The game involves making SETs of three cards with certain compatibility conditions ...

    • The card game SET and finite geometry 

      Abrahamsen, Tiril; Eriksen, Morten (Bachelor thesis, 2023)
      This thesis explores the underlying mathematics of the card game SET, which is a fast-paced pattern recognition game played with 81 cards. The game involves making SETs of three cards with certain compatibility conditions ...

    • The dark matter freeze out and beyond 

      Vangen, Liva Sandvin (Master thesis, 2022)
      Evidence of the existence of dark matter has been found due to deviations of gravitational motion of astronomical objects. We want to investigate the dark matter topic, which is constantly evolving due to the fast development ...

    • The Fourier transform and its applications to partial differential equations. 

      Wigestrand, Mikkel (Master thesis, 2021)
      In this master’s thesis I will introduce a way to solve partial differential equations and boundary value problems by transforming signals from a time domain to a frequency domain, and back. This algorithm is ...

    • The reasons for the collapse of the Tacoma Narrows Bridge and the lessons for the classroom 

      Boge, Audun M.; Pedersen, Fredrik M.; Waldeland. Anders B. (Bachelor thesis, 2022)
      On 7 November 1940, a historical event occurred for suspension bridge construction and aerodynamic engineering around suspension bridges. Engineers investigating the event concluded the bridge collapsed due to high winds ...

    • The Unicity of a Blow-down. 

      Zimba Omega (Master thesis, 2023)
      In algebraic geometry, projective varieties are classified up to isomorphism. This involves classifying the varieties up to birational equivalence and classifying nonsingular varieties in each equivalence class up to ...

    • Thermalization and dynamical spectral properties in the quark-meson model 

      Shen, Lisa; Berges, Jürgen; Pawlowski, Jan M.; Rothkopf, Alexander Karl (Peer reviewed; Journal article, 2020-07)
      We investigate the nonequilibrium evolution of the quark-meson model using two-particle irreducible effective action techniques. Our numerical simulations, which include the full dynamics of the order parameter of chiral ...

    • Thermalization of non-Abelian gauge theories at next-to-leading order 

      Fu, Yu; Ghiglieri, Jacopo; Iqbal, Shahin; Kurkela, Eero Aleksi (Peer reviewed; Journal article, 2022)
      We provide the first next-to-leading-order (NLO) weak-coupling description of the thermalization process of far-from-equilibrium systems in non-Abelian gauge theory. We study isotropic systems starting from either over- ...

    • Thermalization of weakly coupled non-Abelian plasmas at next-to-leading order 

      Fu, Yu; Ghiglieri, Jacopo; Iqbal, Shahin; Kurkela, Eero Aleksi (Peer reviewed; Journal article, 2023)
      We employ the QCD kinetic theory, including next-to-leading(NLO) order corrections in coupling constant, to study the evolution of weakly coupled non-Abelian plasmas towards thermal equilibrium. For two characteristic ...

    • Thermodynamics of antiferromagnetic solids in magnetic fields 

      Brauner, Tomas; Hofmann, Christoph (Peer reviewed; Journal article, 2020)
      We analyze the thermodynamic properties of antiferromagnetic solids subjected to a combination of mutually orthogonal uniform magnetic and staggered fields. Low- temperature series for the pressure, order parameter and ...

    • Thermopower in an anisotropic two-dimensional Weyl semimetal 

      Mandal, Ipsita; Saha, Kush (Journal article, 2020-01)
      We investigate the generation of an electric current from a temperature gradient in a two-dimensional Weyl semimetal with anisotropy in both the presence and absence of a quantizing magnetic field. We show that the anisotropy ...

    • Thoughts about the utility of perturbative QCD in the cores of neutron stars – contribution to a roundtable discussion on neutron stars and QCD 

      Kurkela, Eero Aleksi (Peer reviewed; Journal article, 2022)
      In this contribution, I discuss the utility that perturbative QCD offers in studying the matter in the cores of neutron stars. I discuss the reasons why perturbative QCD can constrain the equation of state at densities far ...

    • Tidserier for finansiell data 

      Miller, Benjamin Vaag (Bachelor thesis, 2023)
      The motivation for this thesis is to grasp general theory and principles for modeling time series, for the application to financial data. By going through the theory that makes up this field and bringing that perception ...

    • Topological G2 and Spin(7) strings at 1-loop from double complexes 

      Ashmore, Anthony; Coimbra, André; Strickland-Constable, Charles; Svanes, Eirik Eik; Tennyson, David (Peer reviewed; Journal article, 2022)
      We study the topological G2 and Spin(7) strings at 1-loop. We define new double complexes for supersymmetric NSNS backgrounds of string theory using generalised geometry. The 1-loop partition function then has a target-space ...

    • Towards Bayesian Estimation of Compartmental Models for COVID-19 

      Bharat Ghimire (Master thesis, 2021)
      This thesis explores concept of compartmental modelling of infectious disease particularly like COVID-19. The world is still under siege by COVID-19. I have discussed two such fundamental mathematical models SIR and SEIR ...

    • Towards dielectric relaxation at a single molecule scale 

      Stetsovych, V; Feigl, Simon; Vranik, Radovan; Wit, Barelt; Rauls, Eva; Samal, Michal; Stary, Ivo; Muellegger, Stefan; Nejedly, Jindrich (Peer reviewed; Journal article, 2022)
      Dielectric relaxation lies at the heart of well-established techniques of dielectric spectroscopy essential to diverse fields of research and technology. We report an experimental route for increasing the sensitivity of ...

    • Towards learning optimized kernels for complex Langevin 

      Alvestad, Daniel; Larsen, Rasmus Normann; Rothkopf, Alexander Karl (Peer reviewed; Journal article, 2023)
      We present a novel strategy aimed at restoring correct convergence in complex Langevin simulations. The central idea is to incorporate system-specific prior knowledge into the simulations, in order to circumvent the NP-hard ...

    • Towards the nucleon hadronic tensor from lattice QCD 

      Liang, Jian; Draper, Terrence; Liu, Keh-Fei; Rothkopf, Alexander Karl; Yang, Yi-Bo (Peer reviewed; Journal article, 2020-06)
      We present the first calculation of the hadronic tensor on the lattice for the nucleon. The hadronic tensor can be used to extract structure functions in deep inelastic scatterings and to provide information for neutrino-nucleon ...