Browsing Fysisk institutt by Title

Now showing items 2249-2268 of 3682

  • Numerical simulations of inhomogeneous superconducting films 
    Tyse, Knut Sollien (Master thesis / Masteroppgave, 2016)
    We have done computer simulations on the electrodynamics of rectangular supercon- ducting films. The critical sheet current is an isotropic quantity. By reducing the critical sheet current in a stripe pattern, we have ...
  • Numerical Simulations of Kinetic Plasmas 
    Rekaa, Vegard Lundby (Doctoral thesis / Doktoravhandling, 2014)
  • Numerical simulations of laser-excited magnetic Bloch oscillations 
    Shinkevich, Sergey; Syljuåsen, Olav Fredrik (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2013)
    We propose to use lasers to excite magnetic Bloch oscillations in one-dimensional easy-axis ferromagnets at low temperatures. This proposal is investigated numerically in detail for material parameters relevant for ...
  • Numerical stability of time-dependent coupled-cluster methods for many-electron dynamics in intense laser pulses 
    Kristiansen, Håkon Emil; Schøyen, Øyvind Sigmundson; Kvaal, Simen; Pedersen, Thomas Bondo (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2020)
    We investigate the numerical stability of time-dependent coupled-cluster theory for many-electron dynamics in intense laser pulses, comparing two coupled-cluster formulations with full configuration interaction theory. Our ...
  • Numerical studies of a plasma diode with external forcing 
    Rekaa, Vegard Lundby; Pecseli, Hans; Trulsen, Jan Karsten (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2012)
    With reference to laboratory Q-machine studies we analyze the dynamics of a plasma diode under external forcing. Assuming a strong axial magnetic field, the problem is analyzed in one spatial dimension by a particle-in-cell ...
  • Numerical Study of Langmuir Probes: Improving Accuracy Using PIC Simulations 
    Brask, Steffen M. (Doctoral thesis / Doktoravhandling, 2024)
    Did you know that in the vacuum of space, there is no vacuum? In fact, most of space is filled with charged particles in a plasma state. Close to Earth, Geomagnetic phenomena, space weather, and radio interference such as ...
  • Numerical Study of Non-Linear Effects for a Swept Bias Langmuir Probe 
    Kjølerbakken, Kai Morgan; Miloch, Wojciech Jacek; Martinsen, Ørjan Grøttem; Pabst, Oliver; Røed, Ketil (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2022)
    We present a numerical study disclosing non-linear effects and hysteresis loops for a swept bias Langmuir probe. A full kinetic particle in cell (PIC) model has been used to study the temporal sheath effects and the probe ...
  • A Numerical Study of Random Close Packing Models of Granular SystemsRestricted Access 
    Darras, Celine Jacqueline Inger (Master thesis / Masteroppgave, 2013)
    Packing of equally sized spheres is an extensive field of research, and the applications range from granular media on the macroscopic scale, to theories of liquids and gases. This thesis presents results from numerical ...
  • A numerical study of the frictional dependence on the sliding velocity 
    Birkeli, Andreas (Master thesis / Masteroppgave, 2009)
    In this project I address the questions of how the frictional force depend on the sliding velocity. Can asperity creep give a velocity weakening effect on the dynamic coefficient of friction for low sliding velocities, and ...
  • Numerisk Løsning av Den Todimensjonale Akustiske Bølgelikningen for Marin Seismikk : Mot ghostfri marin seismikkRestricted Access 
    Jonsrud, Geir (Master thesis / Masteroppgave, 2012)
    I marinseismiske undersøkelser benyttes luftkanoner til å produsere lydbølger som gjennomtrenger jordskorpen under havbunn. En luftkanon er en sylinder hvor store menger luft under høyt trykk blir lagret og sluppet ut over ...
  • Observation and Measurement of Forward Proton Scattering in Association with Lepton Pairs Produced via the Photon Fusion Mechanism at ATLAS 
    Aad, Georges; Abbott, Brad; Abbott, Dale C.; Abed Abud, Adam; Abeling, Kira; Abhayasinghe, Deshan Kavishka; Abidi, Syed Haider; AbouZeid, Ossama Sherif Alexander; Abraham, Nadine L.; Abramowicz, Halina; Bjørke, Kristian; Bugge, Magnar Kopangen; Cameron, David Gordon; Catmore, James Richard; Garonne, Vincent; Gramstad, Eirik; Heggelund, Andreas Løkken; Hellesund, Simen; Håland, Even Simonsen; Morisbak, Vanja; Oppen, Henrik; Ould-Saada, Farid; Pedersen, Maiken; Read, Alexander Lincoln; Rye, Eli Bæverfjord; Røhne, Ole Myren; Sandaker, Heidi; Vadla, Knut Oddvar Høie; Buanes, Trygve; Djuvsland, Julia Isabell; Eigen, Gerald; Fomin, Nikolai; Lee, Graham Richard; Lipniacka, Anna; Martin dit Latour, Bertrand; Stugu, Bjarne; Træet, Are Sivertsen; Abreu, Henso; Abulaiti, Yiming; Acharya, Bobby S.; Achkar, Baida; Adam, Lennart; Adam-Bourdarios, Claire; Adamczyk, Leszek; Adamek, Lukas; Adelman, Jareed; Adersberger, Michael; Adigüzel, Aytül; Adorni, Sofia; Adye, Tim; ATLAS, Collaboration (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
    The observation of forward proton scattering in association with lepton pairs (e+e−+p or μ+μ−+p) produced via photon fusion is presented. The scattered proton is detected by the ATLAS Forward Proton spectrometer, while the ...
  • Observation of a multiplicity dependence in the pT-differential charm baryon-to-meson ratios in proton–proton collisions at s=13 TeV 
    Acharya, S.; Adamová, D.; Adler, A.; Adolfsson, J.; Aglieri Rinella, Rinella; Agnello, M.; Agrawal, N.; Ahammed, Z.; Ahmad, S.; Ahn, S.U.; Ahuja, I.; Akbar, Z.; Akindinov, A.; Al-Turany, M.; Alam, S.N.; Aleksandrov, D.; Alessandro, B.; Alfanda, H.M.; Alme, Johan; Arsene, Ionut Cristian; Djuvsland, Øystein; Eikeland, Viljar Nilsen; Ersdal, Magnus Rentsch; Helstrup, Håvard; Hetland, Kristin Fanebust; Kileng, Bjarte; Langøy, Rune; Lien, Jørgen André; Lofnes, Ingrid Mckibben; Malik, Qasim Waheed; Neagu, Alexandra; Nesbø, Simon Voigt; Nystrand, Joakim Ingemar; Rehman, Attiq Ur; Reme-Ness, H.A.; Richter, Matthias; Røed, Ketil; Röhrich, Dieter; Sætre, Jon-Are; Skaali, Toralf Bernhard; Storehaug, Ida Torkjellsdatter; Storetvedt, Maksim Melnik; Tambave, Ganesh Jagannath; Tveter, Trine Spedstad; Ullaland, Kjetil; Velure, Arild; Wagner, Boris; Wikne, Jon Christopher; Yang, Shiming; Yuan, Shiming; ALICE, Collaboration (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2022)
  • Observation of an Excess of Dicharmonium Events in the Four-Muon Final State with the ATLAS Detector 
    Aad, G.; Abbott, B.; Abeling, K.; Abicht, N.J.; Abidi, S.H.; Aboulhorma, A.; Abramowicz, H.; Abreu, H.; Abulaiti, Y.; Abusleme Hoffman, Hoffman; Acharya, B.S.; Adam Bourdarios, Bourdarios; Adamczyk, L.; Adamek, L.; Addepalli, S.V.; Addison, M.J.; Adelman, J.; Adiguzel, A.; Adye, T.; Affolder, A.A.; Afik, Y.; Agaras, M.N.; Ananiev, Viktor; Bjørke, Kristian; Buanes, Trygve; Bugge, Magnar Kopangen; Cameron, David Gordon; Catmore, James Richard; Djuvsland, Julia Isabell; Eigen, Gerald; Fomin, Nikolai; Gramstad, Eirik; Håland, Even Simonsen; Heggelund, Andreas; Hellesund, Simen; Huiberts, Simon Kristian; Langrekken, Oda Kristin Berg; Lipniacka, Anna; Martin Dit Latour, Bertrand Pascal Christian; Ould-Saada, Farid; Pedersen, Maiken; Read, Alexander Lincoln; Røhne, Ole Myren; Rye, Eli Bæverfjord; Sandaker, Heidi; Shope, David Richard; Stugu, Bjarne Sandvik; Træet, Are Sivertsen; Vadla, Knut Oddvar Høie; Van Rijnbach, Milou; ATLAS, Collaboration (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
  • Observation of an excited Bc± meson state with the ATLAS detector 
    Aad, Georges; Abbott, Brad; Abdallah, Jalal; Abdel Khalek, Samah; Abdinov, Ovsat Bahram oglu; Aben, Rosemarie; Abi, Babak; Abolins, Maris; AbouZeid, Hass; Abramowicz, Halina; Buanes, Trygve; Dale, Ørjan; Eigen, Gerald; Kastanas, Alex; Liebig, Wolfgang; Lipniacka, Anna; Martin dit Latour, Bertrand; Rosendahl, Peter Lundgaard; Sandaker, Heidi; Sjursen, Therese B.; Smestad, Lillian; Stugu, Bjarne; Ugland, Maren; Bugge, Lars; Bugge, Magnar Kopangen; Cameron, David Gordon; Catmore, James Richard; Czyczula, Zofia; Gjelsten, Børge Kile; Gramstad, Eirik; Ould-Saada, Farid; Pajchel, Katarina; Pedersen, Maiken; Read, Alexander Lincoln; Røhne, Ole Myren; Stapnes, Steinar; Strandlie, Are; Abreu, Henso; Abreu, Rômulo F.; Adamczyk, Leszek; Adams, David; Adelman, Jareed; Adomeit, Stefanie; Adye, Tim; Agatonovic-Jovin, Tatjana; Aguilar Saavedra, Juan Antonio; Agustoni, Marco; Åkerstedt, Henrik; Åkesson, Torsten P.A.; Åsman, Barbro; ATLAS, Collaboration (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2014)
  • Observation of centrality-dependent acoplanarity for muon pairs produced via two-photon scattering in Pb+Pb collisions at √sNN=5.02  TeV with the ATLAS detector 
    Aaboud, Morad; Aad, Georges; Abbott, Brad; Abdinov, Ovsat Bahram oglu; Abeloos, Baptiste; Abhayasinghe, Deshan Kavishka; Abidi, Syed Haider; AbouZeid, Hass; Abraham, Nadine L.; Abramowicz, Halina; Buanes, Trygve; Eigen, Gerald; Fomin, Nikolai; Lipniacka, Anna; Martin dit Latour, Bertrand; Mæland, Steffen; Stugu, Bjarne; Yang, Zongchang; Zalieckas, Justas; Bugge, Magnar Kopangen; Cameron, David Gordon; Catmore, James Richard; Feigl, Simon; Franconi, Laura; Garonne, Vincent; Gramstad, Eirik; Hellesund, Simen; Morisbak, Vanja; Oppen, Henrik; Ould-Saada, Farid; Pedersen, Maiken; Read, Alexander Lincoln; Røhne, Ole Myren; Sandaker, Heidi; Serfon, Cédric; Stapnes, Steinar; Vadla, Knut Oddvar Høie; Abreu, Henso; Abulaiti, Yiming; Acharya, Bobby S.; Adachi, Shunsuke; Adamczyk, Leszek; Adelman, Jareed; Adersberger, Michael; Adigüzel, Aytül; Adye, Tim; Affolder, Anthony Allen; Afik, Yoav; Agheorghiesei, Catalin; Aguilar Saavedra, Juan Antonio; Zwalinski, L; ATLAS, Collaboration (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2018)
    This Letter presents a measurement of γγ → μþμ− production in Pb þ Pb collisions recorded by the ATLAS detector at the Large Hadron Collider at ffiffiffiffiffiffiffi sNN p ¼ 5.02 TeV with an integrated luminosity of 0.49 ...
  • Observation of electroweak production of a same-sign W boson pair in association with two jets in pp collisions at √s=13  TeV with the ATLAS detector 
    Aaboud, Morad; Aad, Georges; Abbott, Brad; Abdinov, Ovsat Bahram oglu; Abeloos, Baptiste; Abhayasinghe, Deshan Kavishka; Abidi, Syed Haider; AbouZeid, Hass; Abraham, Nadine L.; Abramowicz, Halina; Buanes, Trygve; Djuvsland, Julia Isabell; Eigen, Gerald; Lipniacka, Anna; Martin dit Latour, Bertrand; Mæland, Steffen; Stugu, Bjarne; Yang, Zongchang; Fomin, Nikolai; Bugge, Magnar Kopangen; Cameron, David Gordon; Catmore, James Richard; Feigl, Simon; Garonne, Vincent; Gramstad, Eirik; Hellesund, Simen; Morisbak, Vanja; Oppen, Henrik; Ould-Saada, Farid; Pedersen, Maiken; Read, Alexander Lincoln; Røhne, Ole Myren; Sandaker, Heidi; Serfon, Cédric; Stapnes, Steinar; Vadla, Knut Oddvar Høie; Abreu, Henso; Abulaiti, Yiming; Acharya, Bobby S.; Achkar, Baida; Adam, Lennart; Adam-Bourdarios, Claire; Adamczyk, Leszek; Adelman, Jareed; Adersberger, Michael; Adigüzel, Aytül; Adye, Tim; Affolder, Anthony Allen; Afik, Yoav; Agheorghiesei, Catalin; ATLAS, Collaboration (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)
  • Observation of electroweak production of two jets in association with an isolated photon and missing transverse momentum, and search for a Higgs boson decaying into invisible particles at 13 TeV with the ATLAS detector 
    Aad, G.; Abbott, B.; Abbott, D.C.; Abud, A. Abed; Abeling, K.; Abhayasinghe, D.K.; Abidi, S.H.; Aboulhorma, A.; Abramowicz, H.; Abreu, H.; Abulaiti, Y.; Hoffman, A. C. Abusleme; Acharya, B.S.; Achkar, B.; Adam, L.; Bourdarios, C. Adam; Adamczyk, L.; Adamek, L.; Addepalli, S.V.; Adelman, J.; Adiguzel, A.; Adorni, S.; Adye, T.; Affolder, A.A.; Bjørke, Kristian; Buanes, Trygve; Bugge, Magnar Kopangen; Cameron, David Gordon; Catmore, James Richard; Djuvsland, Julia Isabell; Eigen, Gerald; Fomin, Nikolai; Garonne, Vincent; Gramstad, Eirik; Håland, Even Simonsen; Heggelund, Andreas; Huiberts, Simon Kristian; Lee, Graham Richard; Lipniacka, Anna; Martin Dit Latour, Bertrand Pascal Christian; Morisbak, Vanja; Ould-Saada, Farid; Pedersen, Maiken; Read, Alexander Lincoln; Røhne, Ole Myren; Rye, Eli Bæverfjord; Sandaker, Heidi; Stugu, Bjarne Sandvik; Træet, Are Sivertsen; Vadla, Knut Oddvar Høie; ATLAS, Collaboration (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2022)
  • Observation of electroweak W±Z boson pair production in association with two jets in pp collisions at √s = 13 TeV with the ATLAS detector 
    Aaboud, Morad; Aad, Georges; Abbott, Brad; Abdinov, Ovsat Bahram oglu; Abeloos, Baptiste; Abhayasinghe, Deshan Kavishka; Abidi, Syed Haider; AbouZeid, Hass; Abraham, Nadine L.; Abramowicz, Halina; Djuvsland, Julia Isabell; Buanes, Trygve; Eigen, Gerald; Fomin, Nikolai; Lipniacka, Anna; Martin dit Latour, Bertrand; Mæland, Steffen; Stugu, Bjarne; Yang, Zongchang; Zalieckas, Justas; Bugge, Magnar Kopangen; Cameron, David Gordon; Catmore, James Richard; Feigl, Simon; Franconi, Laura; Garonne, Vincent; Gramstad, Eirik; Hellesund, Simen; Morisbak, Vanja; Oppen, Henrik; Ould-Saada, Farid; Pedersen, Maiken; Read, Alexander Lincoln; Røhne, Ole Myren; Sandaker, Heidi; Serfon, Cédric; Stapnes, Steinar; Vadla, Knut Oddvar Høie; Abreu, Henso; Abulaiti, Yiming; Acharya, Bobby S.; Adachi, Shunsuke; Adam, Lennart; Adam-Bourdarios, Claire; Adamczyk, Leszek; Adelman, Jareed; Adersberger, Michael; Adigüzel, Aytül; Adye, Tim; Affolder, Anthony Allen; ATLAS, Collaboration (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)
    An observation of electroweak W ± Z production in association with two jets in proton–proton collisions is presented. The data collected by the ATLAS detector at the Large Hadron Collider in 2015 and 2016 at a centre-of-mass ...
  • Observation of flow angle and flow magnitude fluctuations in Pb-Pb collisions at sNN =5.02 TeV at the CERN Large Hadron Collider 
    Acharya, S.; Adamová, D.; Adler, A.; Aglieri Rinella, Rinella; Agnello, M.; Agrawal, N.; Ahammed, Z.; Ahmad, S.; Ahn, S.U.; Ahuja, I.; Akindinov, A.; Al-Turany, M.; Aleksandrov, D.; Alessandro, B.; Alfanda, H.M.; Alfaro Molina, Molina; Ali, B.; Alme, Johan; Arsene, Ionut Cristian; Bodova, Tea; Djuvsland, Øystein; Eikeland, Viljar Nilsen; Ersdal, Magnus Rentsch; Helstrup, Håvard; Hetland, Kristin Fanebust; Kileng, Bjarte; Langøy, Rune; Lien, Jørgen André; Lofnes, Ingrid Mckibben; Malik, Qasim Waheed; Neagu, Alexandra; Nesbø, Simon Voigt; Nystrand, Joakim Ingemar; Rehman, Attiq Ur; Reme-Ness, Haakon André; Richter, Matthias; Røed, Ketil; Röhrich, Dieter; Sætre, Jon-Are; Skaali, Toralf Bernhard; Solheim, Emilie Haugland; Storehaug, Ida Torkjellsdatter; Storetvedt, Maksim Melnik; Tambave, Ganesh Jagannath; Tveter, Trine Spedstad; Ullaland, Kjetil; Wagner, Boris; Wikne, Jon Christopher; Yang, Shiming; Yuan, Shiming; ALICE, Collaboration (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
    This Letter reports on the first measurements of transverse momentum dependent flow angle Ψn and flow magnitude vn fluctuations determined using new four-particle correlators. The measurements are performed for various ...
  • Observation of four-top-quark production in the multilepton final state with the ATLAS detector 
    Aad, G.; Abbott, B.; Abeling, K.; Abicht, N.J.; Abidi, S.H.; Aboulhorma, A.; Abramowicz, H.; Abreu, H.; Abulaiti, Y.; Hoffman, A. C. Abusleme; Acharya, B.S.; Bourdarios, C. Adam; Adamczyk, L.; Adamek, L.; Addepalli, S.V.; Addison, M.J.; Adelman, J.; Adiguzel, A.; Adye, T.; Affolder, A.A.; Afik, Y.; Ananiev, Viktor; Bjørke, Kristian; Buanes, Trygve; Bugge, Magnar Kopangen; Cameron, David Gordon; Catmore, James Richard; Djuvsland, Julia Isabell; Durieux, G.P.O.; Eigen, Gerald; Fomin, Nikolai; Gramstad, Eirik; Håland, Even Simonsen; Heggelund, Andreas; Hellesund, Simen; Huiberts, Simon Kristian; Langrekken, Oda Kristin Berg; Lipniacka, Anna; Martin Dit Latour, Bertrand Pascal Christian; Ould-Saada, Farid; Pedersen, Maiken; Read, Alexander Lincoln; Røhne, Ole Myren; Rye, Eli Bæverfjord; Sandaker, Heidi; Shope, David Richard; Stugu, Bjarne Sandvik; Træet, Are Sivertsen; Vadla, Knut Oddvar Høie; Van Rijnbach, Milou; ATLAS, Collaboration (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)