Blar i Department of Physics and Technology på tittel
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Interatom intrashell blockade
(Peer reviewed; Journal article, 2011-01-07)We demonstrate a feature of the Rydberg blockade mechanism which occurs between two initially excited circular Rydberg atoms. When both atoms are exposed to weak time-dependent electric fields, it is shown that the intrashell ... -
Intercomparison of the POES/MEPED Loss Cone Electron Fluxes With the CMIP6 Parametrization
(Peer reviewed; Journal article, 2019)Quantitative measurements of medium energy electron (MEE) precipitation (>40 keV) are a key to understand the total effect of particle precipitation on the atmosphere. The Medium Energy Proton and Electron Detector (MEPED) ... -
Interface Design for the Gigabit Transceiver Common Readout Unit
(Master thesis, 2016-06-01)The future upgrade of the Large Hadron Collider accelerator, the High-Luminosity LHC, has its goal of increasing the beam luminosity by ten times. This will lead to a corresponding growth of the amount of data to be treated ... -
Interferometric Study of Ionospheric Plasma Irregularities in Regions of Phase Scintillations and HF Backscatter
(Journal article; Peer reviewed, 2022)We investigate the nature of small-scale irregularities observed in the cusp by the Twin Rockets to Investigate Cusp Electrodynamics-2 (TRICE-2) in regions of enhanced phase scintillations and high-frequency coherent radar ... -
Interhemispheric asymmetries of neutral upwelling and ion upflow
(Journal article; Peer reviewed, 2023)This work addresses interhemispheric differences in cusp-related neutral density enhancements. The focus is on enhancements that are driven by Poleward Moving Auroral Forms (PMAF), which provide a repetitive sequence of ... -
Interplanetary Magnetic Field Bx Component Influence on Horizontal and Field-Aligned Currents in the Ionosphere
(Peer reviewed; Journal article, 2018-05)Statistical analyses have shown that the sunward component of the interplanetary magnetic field, Bx (Geocentric Solar Magnetospheric), moderately but significantly affects the auroral intensity. These observations have ... -
Interplanetary Magnetic Field Control of Polar Ionospheric Equivalent Current System Modes
(Peer reviewed; Journal article, 2019)We analyze the response of different ionospheric equivalent current modes to variations in the interplanetary magnetic field (IMF) components By and Bz. Each mode comprises a fixed spatial pattern whose amplitude varies ... -
Interpretation of geometrical effects in consequence modelling. Comparison study between the commercial consequence assessment tools FLACS and PHAST for flammable gas dispersion
(Master thesis, 2014-04-02)Computational fluid dynamics and integral consequence modeling is today a crucial part of safety assessments worldwide. The models are widely used to predict the effects of ventilation patterns, hazardous gas dispersion, ... -
Invariant Mass Distributions of SUSY Cascade Decays
(Master thesis, 2011-06-01)If supersymmetry (SUSY) is realised at experimental energies and R-parity is conserved, sparticles might be produced and decay in cascades at the LHC. A neutral LSP will escape detection, complicating the reconstruction ... -
Inverse Compton emission from heavy WIMP annihilations in the Galactic Centre
(Journal article; Peer reviewed, 2023)A thermal relic WIMP remains a prime candidate for the nature of Dark Matter, particularly for the more poorly constrained case of a heavy ( 1 TeV) WIMP. The highest fluxes from WIMP annihilations are expected in the region ... -
Investigating charm production and fragmentation via azimuthal correlations of prompt D mesons with charged particles in pp collisions at √s = 13 TeV
(Journal article; Peer reviewed, 2022)Angular correlations of heavy-flavour and charged particles in high-energy proton–proton collisions are sensitive to the production mechanisms of heavy quarks and to their fragmentation as well as hadronisation processes. ... -
Investigating correlated fluctuations of conserved charges with net-Λ fluctuations in Pb–Pb collisions at ALICE
(Peer reviewed; Journal article, 2019)Event-by-event fluctuations of conserved charges – such as electric charge, strangeness, and baryon number – in ultrarelativistic heavy-ion collisions provide insight into the properties of the quark-gluon plasma and the ... -
Investigating seasonal differences in auroral oval location in response to the dawn-dusk component of the Interplanetary Magnetic Field
(Master thesis, 2023-11-20)We investigate how the location, size, and intensity of the auroral oval is affected by the combination of a strong dawn/dusk component of the interplanetary magnetic field (IMF By) during northward IMF and the tilt of the ... -
Investigating the Blazar TXS 0506+056 through Sharp Multiwavelength Eyes during 2017-2019
(Journal article; Peer reviewed, 2022)The blazar TXS 0506+056 got into the spotlight of the astrophysical community in 2017 September, when a high-energy neutrino detected by IceCube (IceCube-170922A) was associated at the 3σ level with a γ-ray flare from this ... -
Investigating the energy yield of rain cells
(Master thesis, 2018-12-08)Harvesting energy from rain has been done indirectly for hundreds of years by building dams or reservoirs. Recently, research has been made into gathering energy from individual raindrops. One of the discovered methods ... -
Investigating the impact of space weather on the polar atmosphere using rigorous statistical methods
(Doctoral thesis, 2023-09-15)I de senere år har det vært en økning i observasjonsbaserte, re-analytiske og modellbaserte studier som viser korrelasjoner mellom dag-til-dag og år-til-år solaktivitet og klima-/vær-mønstre. Det overordnede målet med ... -
Investigating the Role of Coherence Effects on Jet Quenching in Pb-Pb Collisions at \(\sqrt{s_{NN}} =2.76\) TeV using Jet Substructure
(Peer reviewed; Journal article, 2017-11)We report measurements of two jet shapes, the ratio of 2-Subjettiness to 1-Subjettiness \(\it{\tau_{2}}/\it{\tau_{1}}\) and the opening angle between the two axes of the 2-Subjettiness jet shape, which is obtained by ... -
Investigation into the impact of solid surfaces in aqueous systems
(Doctoral thesis, 2016-03-03)Global warming is upon us. The scientific community is searching for methods of slowing down, preventing and reversing its effects. Carbon dioxide have been at the center of attention the last few decades, being the main ... -
An investigation into the spectral parameters of ultra-low-frequency (ULF) waves in the polar caps and magnetotail
(Journal article; Peer reviewed, 2022)The present case study is focused on fluctuations at ∼ 1.5 mHz observed on open field lines in both of the polar caps in ground-based geomagnetic data and in the electron concentration in the Northern Hemisphere ionosphere. ... -
Investigation of instability and turbulence effects on gas explosions: experiments and modelling
(Doctoral thesis, 2018-03-09)Safe design of industrial facilities requires models that can predict the consequences of accidental gas explosions in complex geometries with sufficient accuracy. Computa- tional fluid dynamics (CFD) models are widely ...