Browsing Vitenskapelige publikasjoner (IMF) by Title

Now showing items 13-32 of 179

    • 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 ...

    • 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 ...

    • Collective flow in single-hit QCD kinetic theory 

      Kurkela, Eero Aleksi; Mazeliauskas, Aleksas; Törnkvist, Robin (Peer reviewed; Journal article, 2021-11)
      Motivated by recent interest in collectivity in small systems, we calculate the harmonic flow response to initial geometry deformations within weakly coupled QCD kinetic theory using the first correction to the free-streaming ...

    • Collider phenomenology of a unified leptoquark model 

      Faber, T.; Liu, Y.; Porod, W.; Hudec, M.; Malinsky, M.; Staub, F.; Kolesova, Helena (Peer reviewed; Journal article, 2020-05)
      We demonstrate that in a recently proposed unified leptoquark model based on the gauge group SU(4)C×SU(2)L×U(1) R significant deviations from the Standard Model values of R K and R K ∗ can be accommodated without any need ...

    • Comment on ''Szekeres universes with homogeneous scalar fields'' 

      Delgado Gaspar, Ismael; Sussman, Roberto A.; McNutt, David Duncan; Coley, Alan (Peer reviewed; Journal article, 2021-04)
      In two recently published articles, Barrow and Paliathanasis (2018, 2019) [1, 2] claim to have found exact solutions of Einstein’s field equations belonging to the class of non-trivial (i.e., spatially inhomogeneous) ...

    • Competition of chiral soliton lattice and Abrikosov vortex lattice in QCD with isospin chemical potential 

      Grønli, Martin Spillum; Brauner, Tomas (Peer reviewed; Journal article, 2022-04)
      We investigate the thermodynamics of two-flavor quark matter in presence of nonzero isospin chemical potential and external magnetic field. It is known that at sufficiently high isospin chemical potential, charged pions ...

    • The complex heavy-quark potential in an anisotropic quark-gluon plasma — Statics and dynamics 

      Dong, Lihua; Guo, Yun; Islam, Ajaharul; Rothkopf, Alexander Karl; Strickland, Michael (Peer reviewed; Journal article, 2022)
      We generalize a complex heavy-quark potential model from an isotropic QCD plasma to an anisotropic one by replacing the Debye mass mD with an anisotropic screening mass depending on the quark pair alignment with respect ...

    • Connecting the Dots: Numerical Randomized Hamiltonian Monte Carlo with State-Dependent Event Rates 

      Kleppe, Tore Selland (Peer reviewed; Journal article, 2022)
      Numerical generalized randomized Hamiltonian Monte Carlo is introduced, as a robust, easy to use and computationally fast alternative to conventional Markov chain Monte Carlo methods for continuous target distributions. A ...

    • Correlated insulators in twisted bilayer graphene 

      Mandal, Ipsita; Yao, Jia; Mueller, Erich J. (Peer reviewed; Journal article, 2021-03)
      Experiments on graphene bilayers, where the top layer is rotated with respect to the one below, have displayed insulating behavior when the moiré bands are partially filled. We calculate the charge distributions in these ...

    • Correlating confinement to topological fluctuations near the crossover transition in QCD 

      Larsen, Rasmus Normann; Sharma, Sayantan; Shuryak, Edward (Peer reviewed; Journal article, 2022)
      We show the existence of strong (anti)correlations between the topological hot spots and the local values of the trace of the Polyakov loop in 2+1 flavor QCD with physical quark mass, in the vicinity of the crossover ...

    • Cosmology with the Laser Interferometer Space Antenna 

      Auclair, Pierre; Bacon, David; Baker, Tessa; Barreiro, Tiago; Bartolo, Nicola; Belgacem, Enis; Bellomo, Nicola; Ben-Dayan, Ido; Bertacca, Daniele; Besancon, Marc; Blanco-Pillado, Jose J.; Blas, Diego; Boileau, Guillaume; Calcagni, Gianluca; Caldwell, Robert; Caprini, Chiara; Carbone, Carmelita; Chang, Chia-Feng; Chen, Hsin-Yu; Christensen, Nelson; Clesse, Sebastien; Comelli, Denis; Congedo, Giuseppe; Contaldi, Carlo; Crisostomi, Marco; Croon, Djuna; Cui, Yanou; Cusin, Giulia; Cutting, Daniel; Dalang, Charles; De Luca, Valerio; Pozzo, Walter Del; Desjacques, Vincent; Dimastrogiovanni, Emanuela; Dorsch, Glauber C.; Ezquiaga, Jose Maria; Fasiello, Matteo; Figueroa, Daniel G.; Flauger, Raphael; Franciolini, Gabriele; Frusciante, Noemi; Fumagalli, Jacopo; García-Bellido, Juan; Gould, Oliver; Holz, Daniel; Iacconi, Laura; Jain, Rajeev Kumar; Jenkins, Alexander C.; Jinno, Ryusuke; Joana, Cristian; Karnesis, Nikolaos; Konstandin, Thomas; Koyama, Kazuya; Kozaczuk, Jonathan; Kuroyanagi, Sachiko; Laghi, Danny; Lewicki, Marek; Lombriser, Lucas; Madge, Eric; Maggiore, Michele; Malhotra, Ameek; Mancarella, Michele; Mandic, Vuk; Mangiagli, Alberto; Matarrese, Sabino; Mazumdar, Anupam; Mukherjee, Suvodip; Musco, Ilia; Nardini, Germano; No, Jose Miguel; Papanikolaou, Theodoros; Peloso, Marco; Pieroni, Mauro; Pilo, Luigi; Raccanelli, Alvise; Renaux-Petel, Sébastien; Renzini, Arianna I.; Ricciardone, Angelo; Riotto, Antonio; Romano, Joseph D.; Rollo, Rocco; Pol, Alberto Roper; Morales, Ester Ruiz; Sakellariadou, Mairi; Saltas, Ippocratis D.; Scalisi, Marco; Schmitz, Kai; Schwaller, Pedro; Sergijenko, Olga; Servant, Geraldine; Simakachorn, Peera; Sorbo, Lorenzo; Sousa, Lara; Speri, Lorenzo; Steer, Danièle A.; Tamanini, Nicola; Tasinato, Gianmassimo; Torrado, Jesús; Unal, Caner; Vennin, Vincent; Vernieri, Daniele; Vernizzi, Filippo; Volonteri, Marta; Wachter, Jeremy M.; Wands, David; Witkowski, Lukas T.; Zumalacárregui, Miguel; Annis, James; Ares, Fëanor Reuben; Avelino, Pedro P.; Avgoustidis, Anastasios; Barausse, Enrico; Bonilla, Alexander; Bonvin, Camille; Bosso, Pasquale; Calabrese, Matteo; Çalışkan, Mesut; Cembranos, Jose A. R.; Chala, Mikael; Chernoff, David; Clough, Katy; Criswell, Alexander; Das, Saurya; Silva, Antonio da; Dayal, Pratika; Domcke, Valerie; Durrer, Ruth; Easther, Richard; Escoffier, Stephanie; Ferrans, Sandrine; Fryer, Chris; Gair, Jonathan; Gordon, Chris; Hendry, Martin; Hindmarsh, Mark; Hooper, Deanna C.; Kajfasz, Eric; Kopp, Joachim; Koushiappas, Savvas M.; Kumar, Utkarsh; Kunz, Martin; Lagos, Macarena; Lilley, Marc; Lizarraga, Joanes; Lobo, Francisco S. N.; Maleknejad, Azadeh; Martins, Carlos Jose Amaro Parente; Meerburg, P. Daniel; Meyer, Renate; Mimoso, José Pedro; Nesseris, Savvas; Nunes, Nelson; Oikonomou, Vasilis; Orlando, Giorgio; Özsoy, Ogan; Pacucci, Fabio; Palmese, Antonella; Petiteau, Antoine; Pinol, Lucas; Zwart, Simon Portegies; Pratten, Geraint; Prokopec, Tomislav; Quenby, John; Rastgoo, Saeed; Roest, Diederik; Rummukainen, Kari; Schimd, Carlo; Secroun, Aurélia; Sesana, Alberto; Sopuerta, Carlos F.; Tereno, Ismael; Tolley, Andrew; Urrestilla, Jon; Vagenas, Elias C.; van de Vis, Jorinde; van de Weygaert, Rien; Wardell, Barry; Weir, David J.; White, Graham; Świeżewska, Bogumiła; Zhdanov, Valery I. (Peer reviewed; Journal article, 2023)
      The Laser Interferometer Space Antenna (LISA) has two scientific objectives of cosmological focus: to probe the expansion rate of the universe, and to understand stochastic gravitational-wave backgrounds and their implications ...

    • Crystal field effects in the zig-zag chain compound SrTm2O4 

      Quintero Castro, Diana Lucia; Bhat Kademane, Abhijit (Peer reviewed; Journal article, 2022)
      The single ion properties of the zig-zag chain compound SrTm2O4 have been investigated using heat capacity, magnetic susceptibility, magnetization, inelastic neutron scattering, and polarized muon spectroscopy. Two crystal ...