Sökning: "Time-dependent Schrödinger equation"

Visar resultat 1 - 5 av 10 uppsatser innehållade orden Time-dependent Schrödinger equation.

  1. 1. Fano Resonances in Time-Dependent Wells

    L3-uppsats, Uppsala universitet/Materialteori

    Författare :Anton Gregefalk; [2023]
    Nyckelord :Fano resonance; Floquet scattering; Pumped shot-noise; Linear band tilt; Quadratic band touching; Time periodic Hamiltonian;

    Sammanfattning : Floquet’s theorem, a temporal analogue of Bloch’s theorem, is used for studying a time-dependent potential. With applications in cold atoms on optical lattices, quantum dots and more, there is a growing interest in Floquet engineering exotic materials and phases. LÄS MER

  3. 2. Constructing Numerical Methods For Solving The Guiding Equation In Bohmian Mechanics

    Master-uppsats, Uppsala universitet/Materialteori

    Författare :Nilsson Robert; [2021]
    Nyckelord :Bohmian mechanics; De Broglie Bohm Theory; Numerical Methods;

    Sammanfattning : The aim of this thesis was to simulate a part of a proposed experiment by Lev Vaidman by using Bohmian mechanics. To do this a numerical method for solving the Schrödinger equation and theguiding equation was created, with several ways of making the simulation more efficient. LÄS MER

  4. 3. Comparing Three Numerical Methods For Solving The 1D Time Dependent Schrödinger Equation

    Kandidat-uppsats, KTH/Skolan för teknikvetenskap (SCI)

    Författare :Atabak Fathe Jalali; Hugo Åkesson; [2021]
    Nyckelord :;

    Sammanfattning : The purpose of this thesis is to implement three numerical methods for solving and examining the time-dependent Schrödinger equation (TDSE) of the analytically solved quantum harmonic oscillator (QHO) and the, to our knowledge, analytically unsolved double well potential (DW), and to compare the numerical solutions. These methods are the Crank-Nicolson method and two split operator methods of different orders. LÄS MER

  5. 4. Conservative high order collocation methods for nonlinear Schrödinger equations

    Master-uppsats, Stockholms universitet/Fysikum

    Författare :Pau Riera; [2021]
    Nyckelord :Gross-Pitaevskii equation;

    Sammanfattning : In this thesis, we investigate the numerical solution of time-dependent nonlinear Schrödinger equations (more specifically, the Gross-Pitaevskii equation) that appear in the modeling of Bose-Einstein condensates. Since the model is known to conserve important physical invariants, such as mass and energy of the condensate, our goal is to study the importance of reproducing the conservation on the discrete level. LÄS MER

  7. 5. Dependency of high-order harmonics to polarisation properties of many-cycle driving fields

    Master-uppsats, Lunds universitet/Atomfysik; Lunds universitet/Fysiska institutionen

    Författare :Timothé Ramboazanaka; [2018]
    Nyckelord :Atomic physics; attosecond pulses; high-order harmonic generation; polarisation; polarisation state; electron wave packet trajectory; three-step model; time-dependent schrödinger equation; TDSE; two-colour; selection rules; symmetry; conservation laws; Physics and Astronomy;

    Sammanfattning : Light-matter interactions can be used to probe both light and matter as they yield information on a system's state. On the ultrafast timescale, it is possible to employ these interactions to probe fast-occurring phenomena. LÄS MER