Browsing Institutt for fysikk by Title
Now showing items 1752-1771 of 2655
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Physicochemical mechanisms for gas adsorption on clay mineral interfaces and surfaces
(Doctoral theses at NTNU;2020:316, Doctoral thesis, 2020)Increasing anthropogenic carbon emissions have a detrimental impact on our planet's ecosystems. If we want to keep our planet habitable for future generations, serious action is needed. We need to both reduce and mitigate ... -
Pictures on Mathematics Tests - an eye movement analysis
(Master thesis, 2023)Forskning på multimedia i læringssituasjoner er et veletablert felt. På lignende vis finnes det veldig mye forskning om vurdering. Kombinasjonen av disse forskningsfeltene, altså bruk av multimedia i vurderingssammenheng, ... -
Pion and kaon condensation at zero temperature in three-flavor χ\chiχPT at nonzero isospin and strange chemical potentials at next-to-leading order
(Peer reviewed; Journal article, 2020)We consider three-flavor chiral perturbation theory (χPT) at zero temperature and nonzero isospin (µI ) and strange (µS) chemical potentials. The effective potential is calculated to next-to-leading order (NLO) in the π ... -
Pion condensation and phase diagram in the Polyakov-loop quark-meson model
(Journal article; Peer reviewed, 2018)We use the Polyakov-loop extended two-flavor quark-meson model as a low-energy effective model for QCD to study the phase diagram in the μI–T plane where μI is the isospin chemical potential. In particular, we focus on the ... -
Pion condensation and the QCD phase diagram at finite isospin density
(Journal article; Peer reviewed, 2019)We use the Polyakov-loop extended two-flavor quark-meson model as a low-energy effective model for QCD to study 1) the possibility of inhomogeneous chiral condensates and its competition with a homogeneous pion condensate ... -
Pion condensation in QCD at finite isospin density, the dilute Bose gas, and speedy Goldstone bosons
(Journal article, 2024)We consider pion condensation in QCD at finite isospin density μI and zero temperature using two-flavor chiral perturbation theory (χPT). The pressure is calculated to next-to-leading order (NLO) in the low-energy expansion. ... -
Pion Condensation in the Linear Sigma Model
(Master thesis, 2011)In this thesis we study the phase diagram of quantum chromodynamics in an effective low-energy theory at zero baryon chemical potential but finite temperature and isospin density. We investigate pion condensation at finite ... -
Pion Stars: An Investigation of Chiral Perturbation Theory and Its Condensed Phases
(Master thesis, 2022)Muligheten for en ny type kompakte stjerner, navngitt pionstjerner, er nylig foreslått på teoretisk grunnlag. Pionstjerner er massive astrofysiske objekter bestående av et pionkondensat og holdt sammen av tyngdekraften. I ... -
Planar graphene-NbSe2 Josephson junctions in a parallel magnetic field
(Peer reviewed; Journal article, 2021)Thin transition metal dichalcogenides sustain superconductivity at large in-plane magnetic fields due to Ising spin-orbit protection, which locks their spins in an out-of-plane orientation. Here we use thin NbSe2 as ... -
Plane- and stripe-wave phases of a spin-orbit-coupled Bose-Einstein condensate in an optical lattice with a Zeeman field
(Peer reviewed; Journal article, 2020)A weakly interacting, spin-orbit-coupled, ultracold, dilute Bose gas on a two-dimensional square lattice with an external Zeeman field is studied. We explore the plane- and stripe-wave phases of the system involving nonzero ... -
Planetary Wave Oscillations observed in Ozone and Temperature Data from Antarctica during 2009
(Master thesis, 2011)Ozone and temperature data from Troll and Rothera research stations has been analyzed in order to trace planetary waves. Seasonal variations were removed and spectral analysis was performed in order to find dominating ... -
Planetary Wave Oscillations Observed in Ozone from Troll Station Antartica
(Master thesis, 2010)This thesis investigates the possibility of tracing planetary waves with ozone. The mixing ratio of ozone is sensitive to variations of its environment introduced by waves due to its short chemical lifetime. Ground-based ... -
Planetary waves in the MLT: Vertical coupling and effects
(Doctoral thesis, 2015)One of the major difficulties climate models face is the lack of data on the way in which the atmosphere couples energy, dynamics and composition vertically in the Earth’s climate system. This PhD thesis focuses on ... -
Planetary Waves over Antarctica
(Master thesis, 2022)Denne oppgaven undersøker hypotesen lagt frem av Alan Plumb i 1989 med formålet om å forklare nedkjølingen midtvinter i mesosfæren over Antarktis. Fundamentet til denne hypotesen bygger på at de planetarisk bølgene ikke ... -
Plasma Instabilities in Electron-Positron Pair Beams from Blazars
(Master thesis, 2018)The non-detection of an electromagnetic cascade in the electron-positron plasma beams from blazars has led many physicists to invoke an intergalactic magnetic eld that de ects charged particles away from our eld of view. ... -
Plasma Treatment of PDMS for Microcontact Printing (μCP) of Lectins Decreases Silicone Transfer and Increases the Adhesion of Bladder Cancer Cells
(Peer reviewed; Journal article, 2023)The present study investigates silicone transfer occurring during microcontact printing (μCP) of lectins with polydimethylsiloxane (PDMS) stamps and its impact on the adhesion of cells. Static adhesion assays and single-cell ... -
Plasmon polariton deceleration in graphene structures
(Journal article; Peer reviewed, 2012)Surface plasmon-polariton waves with low-phase speed in carbon nanostructures can be utilized for the generation of coherent terahertz radiation through the Čerenkov mechanism, the effect being especially pronounced in ... -
Plasmonic response of supported and interacting spherical nanoparticles
(Master thesis, 2021)Partikkelvekst er vanlig i vitenskap og diverse industrier. De optiske egenskapene til nanopartikler dyrket på et substrat er nyttige når det gjelder overvåking av tykkelsen og sammensetningen til den tynne filmen. ... -
Plasmonics for Light Trapping in Thin Silicon Solar Cells
(Master thesis, 2011)The cost of the wafer represents a significant share of the cost of a solar module. One way to reduce it is to reduce the wafer thickness. However, this leads to increases in the transmission of the sunlight through the ... -
Plasmons and Magnons in Antiferromagnetic FeSn: A Time-Dependent Density Functional Theory Study
(Master thesis, 2023)Not applicable