Les mer om Vidar Skogvoll på engelsk.
Publikasjoner
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Skogvoll, Vidar; Salvalaglio, Marco & Angheluta, Luiza
(2022).
Hydrodynamic phase field crystal approach to interfaces, dislocations, and multi-grain networks.
Modelling and Simulation in Materials Science and Engineering.
ISSN 0965-0393.
30(8).
doi:
10.1088/1361-651X/ac9493.
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Skogvoll, Vidar; Skaugen, Audun; Angheluta, Luiza & Viñals, Jorge
(2021).
Dislocation nucleation in the phase-field crystal model.
Physical review B (PRB).
ISSN 2469-9950.
103(1),
s. 014107-1–014107-8.
doi:
10.1103/PhysRevB.103.014107.
Fulltekst i vitenarkiv
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Se alle arbeider i Cristin
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Delsett, Lene Liebe; Skogvoll, Vidar; Kline, Simon Hasselø & Jemterud, Torkild
(2023).
Abels tårn 18. august.
[Radio].
NRK P2.
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Storehaug, Ida Torkjellsdatter & Skogvoll, Vidar
(2023).
God Fysikk: Av entropi er du kommet til mer entropi skal du bli, med Vidar Skogvoll.
Vis sammendrag
Entropi er kilden til liv, og universets endelige død. Det får bokstavelig talt tida til å gå. Men hva er det? I denne episoden går Ida Storehaug og Vidar Skogvoll ved Fysisk Institutt gjennom tre definisjoner av entropi. Vi følger vitenskapshistorien fra dampmaskiner til kvantedatamaskiner, og ender i noen filosofiske betraktninger om tidas natur. Her følger en episode med høy entropi!
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Joner, Erik; Vestre, Katharina; Skogvoll, Vidar & Jemterud, Torkild
(2022).
Abels tårn.
[Radio].
Radio P2.
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Skogvoll, Vidar
(2019).
The Phase-field Crystal.
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Skogvoll, Vidar
(2017).
Three M-Species Generalizations for Rotating Bose Gases in the Lowest Landau Level.
Universitetet i Oslo.
Vis sammendrag
We generalize three known theoretical results from 1- and 2-species systems to an M-component rotating Bose gas in the lowest Landau level (LLL). First, we find a subspace of the Hilbert space which is closed under homogeneous interaction and diagonalize analytically within this subspace to find the eigenenergies. This is a straight-forward generalization of Ref. [1] from 2 to M species. Second, we state and prove the validity of a basis for a particular class of composite fermion (CF) trial wave functions, known as "simple states" [2], for M-component Bose gases. By doing so, we generalize the simple state basis for 2-component Bose gases found in Ref. [3]. The number of basis elements in the M -component basis is linked to a certain class of combinatorial polynomials called q-multinomials. The proof of the M-component basis has been condensed into an article [4] and is currently under consideration by Journal of Physics A. Third, we have developed numerical tools to study the properties of the CF formalism applied to M -species Bose gases in the LLL and show that the formalism is excellent in capturing the low-energy behavior of such systems for M > 2. This is a generalization of previous results [5, 6, 2], which has shown that the CF formalism is excellent when applied to 1- and 2-component Bose gases. As part of this third generalization, we show how the formalism of simple states captures a class of eigenfunctions of the homogeneous contact interaction. This can be used to effectively visualize the evolution of the ground state of N spin-1 bosons under spin-independent interaction as a function of angular momentum L (originally found in Ref. [7]) for L ≤ N .
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Publisert
12. aug. 2019 14:15
- Sist endret
8. feb. 2024 15:31