Now showing items 17-36 of 292

    • Bayesian inference of real-time dynamics from lattice QCD 

      Rothkopf, Alexander Karl (Peer reviewed; Journal article, 2022)
      The computation of dynamical properties of nuclear matter, ranging from parton distribution functions of nucleons and nuclei to transport properties in the quark-gluon plasma, constitutes a central goal of modern theoretical ...
    • Bayesian seismic inversion for stratigraphic horizon, lithology, and fluid prediction 

      Kolbjørnsen, Odd; Buland, Arild; Hauge, Ragnar; Røe, Per; Ndingwan, Abel Onana; Aker, Eyvind (Peer reviewed; Journal article, 2020)
      We have developed an efficient methodology for Bayesian prediction of lithology and pore fluid, and layer-bounding horizons, in which we include and use spatial geologic prior knowledge such as vertical ordering of ...
    • Bayesian uncertainty quantification of perturbative QCD input to the neutron-star equation of state 

      Gorda, Tyler; Komoltsev, Oleg; Kurkela, Eero Aleksi; Mazeliauskas, Aleksas (Peer reviewed; Journal article, 2023)
      The equation of state of neutron-star cores can be constrained by requiring a consistent connection to the perturbative Quantum Chromodynamics (QCD) calculations at high densities. The constraining power of the QCD input ...
    • Beamforming anvendt på tauet antenne 

      Hopland, Sivert (Bachelor thesis, 2022)
      I denne bacheloroppgaven har jeg skrevet om en ny generasjon tauet antenne med fokus på signalbehandlingen. Til å begynne med gjør jeg kort rede for signalbehandling i historisk sammenheng, og legger så fram problemstillingen. ...
    • Beregning av Homologigrupper og Eulertall 

      Torjussen, Bård Andreas (Bachelor thesis, 2022)
      I matematikk er homologi en generell måte å assosiere en sekvens av algebraiske objekter, som abelske grupper eller moduler, med andre matematiske objekter som topologiske rom. Dette gir en måte å se forskjell på topologiske ...
    • Beyond cuts in small signal scenarios: Enhanced sneutrino detectability using machine learning 

      Alvestad, Daniel; Fomin, Nikolai; Kersten, Jörn; Mæland, Steffen; Strumke, Inga (Peer reviewed; Journal article, 2023)
      We investigate enhancing the sensitivity of new physics searches at the LHC by machine learning in the case of background dominance and a high degree of overlap between the observables for signal and background. We use two ...
    • Black hole spectroscopy in the next decade 

      Cabero, Miriam; Westerweck, Julian; Capano, Collin D.; Kumar, Sumit; Nielsen, Alex Bentley; Krishnan, Badri (Peer reviewed; Journal article, 2020)
      Gravitational wave observations of the ringdown of the remnant black hole in a binary black hole coalescence provide a unique opportunity of confronting the black hole no-hair theorem in general relativity with observational ...
    • Bottomonium suppression at RHIC and LHC 

      Krouppa, Brandon; Rothkopf, Alexander Karl; Strickland, Michael (Peer reviewed; Journal article, 2019-02)
      The strong suppression of heavy quarkonia is a good indicator that one has generated a quark-gluon plasma (QGP) in an ultrarelativistic heavy ion collision. Recent advancements in first principles calculations of the heavy ...
    • Bridgeland Stability Conditions and the Hilbert Scheme of Skew Lines in Projective Space 

      Soulimani, Sammy Alaoui (PhD thesis UiS;, Doctoral thesis, 2023-03)
      Bridgeland stability conditions are powerful tools for studying derived categories, with several applications to algebraic geometry. They were introduced by Bridgeland in 2002 [Bri07], who was motivated by Douglas’ work ...
    • Broad excitations in a 2+1D overoccupied gluon plasma 

      Boguslavski, Kirill; Kurkela, Eero Aleksi; Lappi, Tuomas; Peuron, Jarkko (Peer reviewed; Journal article, 2021-05)
      Motivated by the initial stages of high-energy heavy-ion collisions, we study excitations of far-from-equilibrium 2+1 dimensional gauge theories using classical-statistical lattice simulations. We evolve field perturbations ...
    • Bryan’s Maximum Entropy Method—Diagnosis of a Flawed Argument and Its Remedy 

      Rothkopf, Alexander Karl (Peer reviewed; Journal article, 2020-09)
      The Maximum Entropy Method (MEM) is a popular data analysis technique based on Bayesian inference, which has found various applications in the research literature. While the MEM itself is well-grounded in statistics, I ...
    • Bubble nucleation and quantum initial conditions in classical statistical simulations 

      Tranberg, Anders; Ungersbäck, Gerhard (Peer reviewed; Journal article, 2022)
      Classical-statistical lattice simulations provide a useful approximation to outof-equilibrium quantum field theory, but only for systems exhibiting large occupation numbers, and only for phenomena that are not intrinsically ...
    • Can cancer cells inform us about the tumor microenvironment? 

      Nævdal, Geir; Evje, Steinar (Peer reviewed; Journal article, 2023)
      Characteristics of the tumor microenvironment (TME) such as the leaky intratumoral vascular network and the density and composition of the desmoplastic extracellular matrix (ECM) contain essential information that determine ...
    • Charged FENE-P non-newtonian fluid model 

      Orioma, Charles (Masteroppgave/UIS-TN-IMF/2018;, Master thesis, 2018-06-15)
    • Chemical equilibration in hadronic collisions 

      Kurkela, Aleksi; Mazeliauskas, Aleksas (Peer reviewed; Journal article, 2019)
      We study chemical equilibration in out-of-equilibrium quark-gluon plasma using the first principles method of QCD effective kinetic theory, accurate at weak coupling. In longitudinally expanding systems—relevant for ...
    • Chemical equilibration in weakly coupled QCD 

      Kurkela, Aleksi; Mazeliauskas, Aleksas (Peer reviewed; Journal article, 2019)
      We study thermalization, hydrodynamization, and chemical equilibration in out-of-equilibrium quark-gluon plasma starting from various initial conditions using QCD effective kinetic theory, valid at weak coupling. In ...
    • Chiral density wave versus pion condensation at finite density and zero temperature 

      Andersen, Jens Oluf (Journal article; Peer reviewed, 2018-04)
      The quark-meson model is often used as a low-energy effective model for QCD to study the chiral transition at finite temperature T, baryon chemical potential μB, and isospin chemical potential μI. We determine the parameters ...
    • Chiral soliton lattice in QCD-like theories 

      Brauner, Tomas; Filios, Georgios; Kolesova, Helena (Peer reviewed; Journal article, 2019)
      Recently, it has been shown that the ground state of quantum chromodynamics (QCD) in suffciently strong magnetic fields and at moderate baryon number chemical potential carries a crystalline condensate of neutral pions: ...
    • Chiral soliton lattice phase in warm QCD 

      Brauner, Tomas; Kolesova, Helena; Yamamoto, Naoki (Peer reviewed; Journal article, 2021-11)
      We analyze the phase diagram of quantum chromodynamics at low-to-moderate temperature, baryon chemical potential and external magnetic field within chiral perturbation theory at next-to-leading order of the derivative ...
    • Cold quark matter at N3LO: Soft contributions 

      Gorda, Tyler; Kurkela, Eero Aleksi; Paatelainen, Risto; Säppi, Saga; Vuorinen, Aleksi (Peer reviewed; Journal article, 2021)
      High-order perturbative calculations for thermodynamic quantities in QCD are complicated by the physics of dynamical screening that affects the soft, long-wavelength modes of the system. Here, we provide details for the ...