Essays about: "Matematisk fysik"

Showing result 16 - 20 of 121 essays containing the words Matematisk fysik.

  1. 16. Crosscap States in Integrable Spin Chains

    University essay from KTH/Fysik

    Author : Christopher Ekman; [2022]
    Keywords : Theoretical Physics; Mathematical Physics; Integrability; Integrable Systems; Spin chains; Heisenberg model; Integrable Boundary States; Crosscap states; Teoretisk fysik; Matematisk fysik; Integrabilitet; Integrabla system; Spinnkedjor; Heisenbergmodellen; Integrabla gränstillstånd; Crosscaptillstånd;

    Abstract : We consider integrable boundary states in the Heisenberg model. We begin by reviewing the algebraic Bethe Ansatz as well as integrable boundary states in spin chains. Then a new class of integrable states that was introduced last year by Caetano and Komatsu is described and expanded. We call these states the crosscap states. READ MORE

  3. 17. Bose-Einstein Condensate Jets from Different Traps

    University essay from Lunds universitet/Matematisk fysik; Lunds universitet/Fysiska institutionen

    Author : Emmanuel-Roosevelt D Costa; [2022]
    Keywords : Bose-Einstein Condensate; Jets; Bose Fireworks; Gross-Pitaevskii equation; Physics and Astronomy;

    Abstract : This thesis presents a numerical study of the emission of jets by a trapped Bose-Einstein Condensate (BEC). The Gross-Pitaevskii equation is used for the simulation of this phenomenon. When the scattering length of a trapped BEC is periodically modulated it emits jets of matter. READ MORE

  4. 18. Full Configuration Interaction Model for 1-D Quantum System

    University essay from Lunds universitet/Matematisk fysik; Lunds universitet/Fysiska institutionen

    Author : Adam Asaad; [2022]
    Keywords : Physics and Astronomy;

    Abstract : The many-body problem is one of the most challenging problems in physics due to the complexity emerging from the interactions of many quantum particles. Since the advent of computers with increasing power, computational methods have been very successful in providing insight and precise solutions to this problem. READ MORE

  5. 19. Measurement & Feedback Control of a Two Level System

    University essay from Lunds universitet/Matematisk fysik; Lunds universitet/Fysiska institutionen

    Author : Sayan Ali Khan; [2022]
    Keywords : Quantum Measurement; Generalized Measurements; POVM Positive Operator Valued Measure ; Feedback Control; Two-Level System; Physics and Astronomy;

    Abstract : In this bachelor project, the main objective is to investigate how a two-level quantum system can be controlled using weak continuous measurements and feedback control. The Monte-Carlo method was used to simulate the system dynamics under measurement and feedback to investigate how the system state can be controlled. READ MORE

  6. 20. Quantum statistics of a three-level maser

    University essay from Lunds universitet/Matematisk fysik; Lunds universitet/Fysiska institutionen

    Author : Andreas Evensen; [2022]
    Keywords : Maser; Laser; SSD-maser; Euler s method; Runge-Kutta method; Louvillian; Dissipator; Lindblad s master equation; Entropy; Thermodynamics; Coherent-state; Glauber-state; Python; Rabi-Oscillations; Occupation number of the photon mode; Density operator; Physics and Astronomy;

    Abstract : Lasers and masers have numerous uses in today’s society. Improving our understanding of the underlying physics and its application is thus of great importance. READ MORE