SwePub
Sök i SwePub databas

  Utökad sökning

Träfflista för sökning "L773:1050 2947 OR L773:1094 1622 ;lar1:(ltu);pers:(Gustafsson Magnus)"

Sökning: L773:1050 2947 OR L773:1094 1622 > Luleå tekniska universitet > Gustafsson Magnus

  • Resultat 1-2 av 2
Sortera/gruppera träfflistan
   
NumreringReferensOmslagsbildHitta
1.
  • Gustafsson, Magnus, et al. (författare)
  • Infrared absorption by H2-Ar collisional complexes and the anisotropy of the intermolecular interaction potential
  • 2006
  • Ingår i: Physical Review A. Atomic, Molecular, and Optical Physics. - 1050-2947 .- 1094-1622. ; 74
  • Tidskriftsartikel (refereegranskat)abstract
    • H2-Ar scattering processes in the presence of a weak photon field are considered. Calculations are based on an accurate ab initio interaction-induced electric dipole surface and an anisotropic intermolecular potential energy surface. The close-coupled scheme of integrating the Schrödinger equation is employed to calculate the rototranslational absorption spectrum of H2-Ar pairs in the far-infrared region of the electromagnetic spectrum. The results are compared with previous work where the weak anisotropy of the intermolecular interaction potential was suppressed. Under the conditions considered, accounting for the anisotropy modifies the rototranslational absorption spectrum discernibly, but only at some frequency bands where the corrections are negative, typically below 10%.
  •  
2.
  • Gustafsson, Magnus, et al. (författare)
  • Intracollisional interference of R lines of HD in mixtures of deuterium hydride and helium gas
  • 2001
  • Ingår i: Physical Review A. Atomic, Molecular, and Optical Physics. - 1050-2947 .- 1094-1622. ; 63:5
  • Tidskriftsartikel (refereegranskat)abstract
    • Line shapes of the R0(0) and R0(1) lines in the pure rotational band, and of the R1(0) and R1(1) lines in the fundamental band of HD are computed from first principles for HD molecules that interact collisionally with He atoms. Interference of the permanent dipole of the HD molecule and the interaction-induced dipole of HD–He supermolecular complex shapes these profiles. We use the close-coupling scheme for the scattering calculations which take into account the anisotropy of the HD–He interaction potential. Thus rotational level mixing is accounted for in a non-perturbative manner. The treatment is fully quantum mechanical and takes into account single binary collisions between HD and He. Spectral absorption profiles and line shape parameters of the R-lines are computed for comparison with existing measurements at 77 K. Agreement between theory and measurements is observed in the low-helium-density limit of the measured absorption as expected.
  •  
Skapa referenser, mejla, bekava och länka
  • Resultat 1-2 av 2
Typ av publikation
tidskriftsartikel (2)
Typ av innehåll
refereegranskat (2)
Författare/redaktör
Frommhold, Lothar (2)
Gustafsson, Magn... (2)Ta bort avgränsningen
Lärosäte
Luleå tekniska universitet  (2)Ta bort avgränsningen
Språk
Engelska (2)
Forskningsämne (UKÄ/SCB)
Naturvetenskap (2)

År

Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.

 
pil uppåt Stäng

Kopiera och spara länken för att återkomma till aktuell vy