Essays about: "coherent states"

Showing result 1 - 5 of 63 essays containing the words coherent states.

  1. 1. Quantum Optical Description of High-order Harmonic Generation

    University essay from Lunds universitet/Atomfysik; Lunds universitet/Fysiska institutionen

    Author : Isabel Moreno; [2024]
    Keywords : Physics and Astronomy;

    Abstract : High-order Harmonic Generation (HHG) is a highly non-linear process in which an atom interacts with a strong laser field. The laser field lowers the atomic potential barrier allowing bound electrons to escape into the continuum through tunnel ionization, propagate, and, with some probability, recombine with the parent ion. READ MORE

  3. 2. Mood and Verbals in North Common Tulu

    University essay from Uppsala universitet/Institutionen för lingvistik och filologi

    Author : Emil Magnus Mannby; [2024]
    Keywords : Tulu; Dravidian languages; mood; inflection; morphology; finiteness;

    Abstract : In the Dravidian language Tulu, spoken in the south of present day India, in the states of Karnataka and Kerala, several verb forms exist which have hitherto been poorly described in the scientific literature. A set of these code different modal distinctions, and are thus labeled moods. READ MORE

  4. 3. Effects of Ultrafast Ionization in X-ray Coherent Diffraction Imaging

    University essay from KTH/Kemi

    Author : Arezu Sehati; [2023]
    Keywords : Coherent Diffraction Imaging; X-ray Free Electron Lasers; Refractive index; Core-shell nanoclusters; Rare-gas ionization; Koherent Diffraktionsavbildning; Röntgenfrielektronlaser; Brytningsindex; Core-shell-nanokluster; Ädelgasjonisering;

    Abstract : Koherent Diffraktionsavbildning med en intensiv röntgenpuls från en Frielektronlaser har möjliggjort strukturbestämning av isolerade nanopartiklar som inte går att studera med hjälp av konventionella metoder, så som elektronmikroskopi. En mycket kort pulslängd tillsammans med spridningssignalens beroende av objektets elektroniska struktur medför också möjligheten att studera inducerad ultrasnabb dynamik med denna teknik. READ MORE

  5. 4. Asymptotic Symmetries and Dressed States in QED and QCD

    University essay from Stockholms universitet/Fysikum

    Author : Saimeng Zhou; [2023]
    Keywords : Dressed states; Large gauge transformation; Faddeev-Kulish formalism; Generalized coherent state operator; Wilson line; Infrared divergence; Asymptotic Hamiltonian; QED; QCD;

    Abstract : Infrared divergences arising in theories with massless gauge bosons have been shown to cancel in scattering amplitudes when using dressed states constructed from the Faddeev- Kulish approach to the asymptotic states. It has been established that these states are closely related to asymptotic symmetries of the theory, that is, non-vanishing gauge trans- formations at the asymptotic boundary. READ MORE

  6. 5. EU Delegations Between Consistency and Pragmatism : A Study on the Political Role of EU Delegations in the Middle East and North Africa

    University essay from Uppsala universitet/Teologiska institutionen

    Author : Simon Axelsson; [2023]
    Keywords : EU delegations; European external action; MENA region; foreign policy and international relations; diplomacy;

    Abstract : It is more than a decade since the Lisbon Treaty entered into force, and the European External Action Service (EEAS) was founded to unify the EU's foreign policy and make it more coherent and consistent. With the creation of the EEAS, the Commission delegations were transformed into EU delegations, and the delegations started to represent the whole EU abroad politically. READ MORE