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

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    • Quantum chromodynamics and particle energy-loss in heavy-ion collisions due to medium interactions. 

      Kjærnsmo, Amanda Lavinia (Master thesis, 2021)
      This study is following a simple model for predicting particle energy-loss due to medium interactions. Observables from heavy-ion collisions suggests the formation of a highly dense medium called quark-gluon plasma (QGP). ...

    • Quantum corrections to slow-roll inflation: scalar and tensor modes 

      Andersen, Jens Oluf; Eriksson, Magdalena Britt; Tranberg, Anders (Peer reviewed; Journal article, 2021)
      Inflation is often described through the dynamics of a scalar field, slow-rolling in a suitable potential. Ultimately, this inflaton must be identified with the expectation value of a quantum field, evolving in a quantum ...

    • Quantum dynamical dissociation of quarkonia by wave function decoherence in quark-gluon plasma 

      Kajimoto, Shiori; Akamatsu, Yukinao; Asakawa, Masayuki; Rothkopf, Alexander Karl (Peer reviewed; Journal article, 2019-02)
      In this study, we investigate the real-time evolution of quarkonium bound states in a quark-gluon plasma in an improved QCD based stochastic potential model. This model describes the quarkonium dynamics in terms of a ...

    • Quantum gravity phenomenology at the dawn of the multi-messenger era—A review 

      Addazi, A.; Alvarez-Muniz, J.; Alves Batista, Batista; Amelino-Camelia, G.; Antonelli, V.; Arzano, M.; Asorey, M.; Atteia, J.-L.; Bahamonde, S.; Bajardi, F.; Ballesteros, A.; Baret, B.; Barreiros, D.M.; Basilakos, S.; Benisty, D.; Birnholtz, O.; Blanco-Pillado, J.J.; Blas, D.; Bolmont, J.; Boncioli, D.; Bosso, P.; Calcagni, G.; Capozziello, S.; Carmona, J.M.; Cerci, S.; Chernyakova, M.; Clesse, S.; Coelho, J.A.B.; Colak, S.M.; Cortes, J.L.; Das, S.; D'Esposito, V.; Demirci, M.; Di Luca, Luca; di Matteo, Matteo; Dimitrijevic, D.; Djordjevic, G.; Prester, D. Dominis; Eichhorn, A.; Ellis, J.; Escamilla-Rivera, C.; Fabiano, G.; Franchino-Viñas, S.A.; Frassino, A.M.; Frattulillo, D.; Funk, S.; Fuster, A.; Gamboa, J.; Gent, A.; Gergely, L.A.; Giammarchi, M.; Giesel, K.; Glicenstein, J.-F.; Gracia-Bondía, J.; Gracia-Ruiz, R.; Gubitosi, G.; Guendelman, E.I.; Gutierrez-Sagredo, I.; Haegel, L.; Heefer, S.; Held, A.; Herranz, F.J.; Hinderer, T.; Illana, J.I.; Ioannisian, A.; Jetzer, P.; Joaquim, F.R.; Kampert, K.-H.; Uysal, A. Karasu; Katori, T.; Kazarian, N.; Kerszberg, D.; Kowalski-Glikman, J.; Kuroyanagi, S.; Lämmerzahl, C.; Said, J. Levi; Liberati, S.; Lim, E.; Lobo, I.P.; López-Moya, M.; Luciano, G.G.; Manganaro, M.; Marcianò, A.; Martín-Moruno, P.; Martinez, Manel; Martinez, Mario; Martínez-Huerta, H.; Martínez-Miravé, P.; Masip, M.; Mattingly, D.; Mavromatos, N.; Mazumdar, A.; Méndez, F.; Mercati, F.; Micanovic, S.; Mielczarek, J.; Miller, A.L.; Milosevic, M.; Minic, D.; Miramonti, L.; Mitsou, V.A.; Moniz, P.; Mukherjee, S.; Nardini, Germano; Navas, S.; Niechciol, M.; Nielsen, A.B.; Obers, N.A.; Oikonomou, Foteini; Oriti, D.; Paganini, C.F.; Palomares-Ruiz, S.; Pasechnik, R.; Pasic, V.; Pérez de los Heros, de; Pfeifer, C.; Pieroni, M.; Piran, T.; Platania, A.; Rastgoo, S.; Relancio, J.J.; Reyes, M.A.; Ricciardone, Angelo; Risse, M.; Frias, M.D. Rodriguez; Rosati, G.; Rubiera-Garcia, D.; Sahlmann, H.; Sakellariadou, M.; Salamida, F.; Saridakis, E.N.; Satunin, P.; Schiffer, M.; Schüssler, F.; Sigl, G.; Sitarek, J.; Peracaula, J. Solà; Sopuerta, C.F.; Sotiriou, T.P.; Spurio, M.; Staicova, D.; Stergioulas, N.; Stoica, S.; Strišković, J.; Stuttard, T.; Cerci, D. Sunar; Tavakoli, Y.; Ternes, C.A.; Terzić, T.; Thiemann, T.; Tinyakov, P.; Torri, M.D.C.; Tórtola, M.; Trimarelli, C.; Trześniewski, T.; Tureanu, A.; Urban, Federico; Vagenas, E.C.; Vernieri, D.; Vitagliano, V.; Wallet, J.-C.; Zornoza, J.D. (Peer reviewed; Journal article, 2022)
      The exploration of the universe has recently entered a new era thanks to the multi-messenger paradigm, characterized by a continuous increase in the quantity and quality of experimental data that is obtained by the detection ...

    • Quantum tunnelling, real-time dynamics and Picard-Lefschetz thimbles 

      Mou, Zonggang; Saffin, Paul M.; Tranberg, Anders (Peer reviewed; Journal article, 2019-11)
      We follow up the work, where in light of the Picard-Lefschetz thimble approach, we split up the real-time path integral into two parts: the initial density matrix part which can be represented via an ensemble of initial ...

    • Quarkonium phenomenology from a generalised Gauss law 

      Lafferty, David; Rothkopf, Alexander Karl (Peer reviewed; Journal article, 2019-05)
      We present an improved analytic parametrisation of the complex in-medium heavy quark potential derived rigorously from the generalised Gauss law. To this end we combine in a self-consistent manner a non-perturbative vacuum ...

    • Quarkonium production and suppression: Theory 

      Rothkopf, Alexander Karl (Peer reviewed; Journal article, 2021-01)
      Heavy quarkonium theory has seen significant progress over the past years. Not only has the community steadily improved the understanding of fully equilibrated quarkonium using first principles lattice QCD studies, but it ...

    • Quarkonium production in the QGP 

      Rothkopf, Alexander Karl (Peer reviewed; Journal article, 2019-05)
      We report on recent theory progress in understanding the production of heavy quarkonium in heavy-ion collisions based on the in-medium heavy-quark potential extracted from lattice QCD simulations. On the one hand, the ...

    • Quasi-Local Approaches to Black Hole Horizons and Rindler Trajectories in Dynamical Black Hole Spacetimes 

      Singh,Karanvir (Master thesis, 2021)
      Many introductory texts on general relativity introduce event horizons as the defining feature of black holes. However such seemingly benign constructs have some key physical limitations. Therefore, it is imperative to ...

    • Quench, thermalization, and residual entropy across a non-Fermi liquid to Fermi liquid transition 

      Haldar, Arijit; Haldar, Prosenjit; Bera, Surajit; Mandal, Ipsita; Banerjee, Sumilan (Peer reviewed; Journal article, 2020)
      We study the thermalization, after sudden and slow quenches, in an interacting model having a quantum phase transition from a Sachdev-Ye-Kitaev (SYK) non-Fermi liquid (NFL) to a Fermi liquid (FL). The model has SYK fermions ...

    • Real time simulation of quarkonium in a thermal medium using a 3D Lindblad equation 

      Matre, Aslak (Master thesis, 2022)
      Using a new finite difference operator RN-SBP that has recently been developed and used for 1D simulations of the Lindblad equation, we extend it to the 3D case. We have not quite been able to implement the RN-SBP properly ...

    • Real-Time Complex Langevin - A Differential Programming Perspective 

      Alvestad, Daniel (PhD thesis UiS;, Doctoral thesis, 2023)
      In this thesis, I aim to find solutions to the NP-hard sign-problem that arises when modeling strongly correlated systems in real-time. I will use the complex Langevin (CLE) method, and address its problem of runaway ...

    • Real-time quantum dynamics, path integrals and the method of thimbles 

      Mou, Zonggang; Saffin, Paul M.; Tranberg, Anders; Woodward, Simon (Peer reviewed; Journal article, 2019)
      Direct numerical evaluation of the real-time path integral has a well-known sign problem that makes convergence exponentially slow. One promising remedy is to use Picard-Lefschetz theory to flow the domain of the field ...

    • Realistic in-medium heavy-quark potential from high statistics lattice QCD simulations 

      Petreczky, Peter; Rothkopf, Alexander Karl; Weber, Johannes Heinrich (Peer reviewed; Journal article, 2019)
      We present our first results on a direct computation of the complex in-medium heavy quark potential from realistic lattice QCD simulations. Ensembles with Nτ = 12 from the HotQCD and TUMQCD collaboration offer unprecedented ...

    • Reconstructing parton distribution functions from Ioffe time data: from Bayesian methods to Neural Networks 

      Karpie, Joseph; Orginos, Kostas; Rothkopf, Alexander Karl; Zafeiropoulos, Savvas (Peer reviewed; Journal article, 2019)
      The computation of the parton distribution functions (PDF) or distribution amplitudes (DA) of hadrons from first principles lattice QCD constitutes a central open problem. In this study, we present and evaluate the efficiency ...

    • Relative Survival Methods – Theory, Applications and Extensions to Monitoring 

      Tran, Jimmy Huy (Master thesis, 2022)
      In cancer research, one is often interested in the part of the hazard which corresponds to the disease. If the cause of death is unknown as in cancer registry data, the standard methods in survival analysis do not distinguish ...

    • The role of initial state radiation in quenched jets 

      Zapp, Korinna Christine (Peer reviewed; Journal article, 2022)
      Jet quenching in heavy ion collisions and in particular the sub-structure of quenched jets are promising tools for investigating the microscopic processes underlying jet quenching and the background medium's response to ...

    • Rovdyr-Bytte Modellen 

      Serigstad, Alexander. (Bachelor thesis, 2021)
      The thesis is about the Lotka-Volterra equations which describes, trough differential equations, a theoretical situation where one species (predator) lives on a another species (prey), while the prey lives on a different ...

    • RSA-kryptering med diskusjon om bruk av det i skolen 

      Hjellup, Olav Hansen (Master thesis, 2022)
      Masteroppgaven gir en grunnleggende introduksjon av RSA kryptering, og angrep på RSA kryptering. Vi presenterer, modulær aritmetikk, tallteorien som er nødvendig for å forstå RSA kryptering, og en generell innføring i hva ...

    • Sammenheng mellom dentalt plakk og forkalkninger i arterievegger 

      Volkova, Olga (Bachelor thesis, 2022)