Browsing TKD - Institutt for informasjonsteknologi by Subject "VDP::Matematikk og Naturvitenskap: 400::Fysikk: 430"

Now showing items 1-8 of 8

    • Different representations of the Levi-Civita Bertotti Robinson solution 

      Grøn, Øyvind; Johannesen, Steinar (The European Physical Journal Plus;128, Journal article; Peer reviewed, 2013-04-23)
      The Levi-Civita Bertotti Robinson (LBR) spacetime is investigated in various coordinate systems. By means of a general formalism for constructing coordinates in conformally flat spacetimes, coordinate transformations ...

    • Distinction between sequential and direct ionization in two-photon double ionization of helium 

      Selstø, Sølve (Physical Review A. Atomic, Molecular, and Optical Physics;90, Journal article; Peer reviewed, 2014-11-10)
      This paper aims to shed some light on the role of the direct, or nonsequential, ionization channel in the regime in which the sequential channel is open in two-photon double ionization (TPDI) of helium. In this regime the ...

    • Electrodynamics of Radiating Charges 

      Grøn, Øyvind (Advances in Mathematical Physics;, Journal article; Peer reviewed, 2012)
      The theory of electrodynamics of radiating charges is reviewed with special emphasis on the role of the Schott energy for the conservation of energy for a charge and its electromagnetic field. It is made clear that the ...

    • On the relativity of rotation 

      Grøn, Øyvind (Nuovo cimento. B;(7), Journal article; Peer reviewed, 2010)
      The question whether rotational motion is relative according to the general theory of relativity is discussed. Einstein’s ambivalence concerning this question is pointed out. In the present article I defend Einstein’s way ...

    • A physical interpretation of Hubble’s law and the cosmological redshift from the perspective of a static observer 

      Bræck, Simen; Elgarøy, Øystein (General Relativity and Gravitation;44 (10), Journal article; Peer reviewed, 2012-07-18)
      We derive explicit and exact expressions for the physical velocity of a free particle comoving with the Hubble flow as measured by a static observer, and for the frequency shift of light emitted by a comoving source and ...

    • Quantized Algebras of Functions on Homogeneous Spaces with Poisson Stabilizers 

      Neshveyev, Sergey; Tuset, Lars (Journal article; Peer reviewed, 2012-03-01)
      Let G be a simply connected semisimple compact Lie group with standard Poisson structure, K a closed Poisson-Lie subgroup, 0 < q < 1. We study a quantization C(G q /K q ) of the algebra of continuous functions on G/K. Using ...

    • Scattering in a quantum dot: the role of resonances 

      Selstø, Sølve (Journal of Physics: Condensed Matter;25(31), Journal article; Peer reviewed, 2013-07-09)
      The dynamics of a system in which an electron is incident on a populated quantum dot is studied by resolving the time dependence of the system. Specifically, one electron is initially at rest in the ground state of the ...

    • What do quantum computing students need to know about quantum physics? 

      Bungum, Berit; Selstø, Sølve (Peer reviewed; Journal article, 2022)
      Quantum computing is a rapidly developing technology, and we are experiencing an urgent need for experts in the field. However, there is a lack of traditions, research, and development on to what extent, and how, information ...