Sökning: "polarizability"

Visar resultat 1 - 5 av 6 uppsatser innehållade ordet polarizability.

  1. 1. Polarizability and Orientation Dynamics of Small Proteins

    Master-uppsats, Uppsala universitet/Materialteori

    Författare :Ebba Koerfer; [2022]
    Nyckelord :Protein orientation; single-particle imaging; polarizability; orientation dynamics; rigid rotor model;

    Sammanfattning : Proteins often carry an intrinsic electric dipole moment, which can interact with external electric fields and cause protein motion. Previous research has found that the orientation of small proteins in gas phase can be controlled in a static electric field. LÄS MER

  3. 2. Characterisation of a Gas Modulation Refractometer for Detection of Gases at 1550 nm

    Kandidat-uppsats, Umeå universitet/Institutionen för fysik

    Författare :Nils Zachmann; [2018]
    Nyckelord :;

    Sammanfattning : Only very few molar polarizabilities are known with high accuracy; and when so, they are in general only known at a given wavelength. There is therefore a need to assess the molar polarizability with high accuracy of various gases, at different wavelengths. LÄS MER

  4. 3. The Anatomy of the Pion Loop Hadronic Light by Light Scattering Contribution to the Muon Magnetic Anomaly

    Master-uppsats, Lunds universitet/Teoretisk partikelfysik - Geonomgår omorganisation

    Författare :Mehran Zahiriabyaneh; [2012]
    Nyckelord :Hadronic Light by Light; Muon Magnetic Anomaly; Hidden Local Symmetry; Chiral Perturbation Theory; Vector Meson Dominance; Physics and Astronomy;

    Sammanfattning : This thesis investigates the Hadronic Light by Light (HLL) scattering contribution to the muon g − 2, which is one of the most important low energy hadronic effects and consists mainly of the quark loop, the pion pole and the charged pion and kaon loops. In this work the charged pion loop has been investigated more closely. LÄS MER

  5. 4. Classical over-the-barrier model for ionization of poly-cyclic aromatic hydrocarbons in keV-collisions with atomic ions

    Kandidat-uppsats, Fysikum

    Författare :Björn Forsberg; [2011]
    Nyckelord :PAH; collisions; ions; electrostatic; model; potential; barrier; PAH; kollisioner; joner; elektrostatisk; modell; potential; barriär;

    Sammanfattning : We are developing a novel classical over-the barrier model for electron transfer from an in nitely thin conducting disc to a point charge projectile to model multiple electron capture in e.g. keV collisions of atomic ions with poly-cyclic aromatic hydrocarbons (PAHs). LÄS MER

  7. 5. Dispersion forces in a four-component density functional theory framework

    Master-uppsats, Institutionen för fysik, kemi och biologi

    Författare :Robert Pilemalm; [2009]
    Nyckelord :Dispersion force; polarizability; four-component density functional theory; noble gases;

    Sammanfattning : The main purpose of this thesis is to implement the Gauss--Legendre quadrature for the dispersion coefficient. This has been done and can be now be made with different number of points. LÄS MER