Essays about: "Fokker-Planck equation"

Showing result 1 - 5 of 6 essays containing the words Fokker-Planck equation.

  1. 1. Continuous Quantum Control of Quantum Dot Systems

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

    Author : Daniel Holst; [2022]
    Keywords : Quantum Control; Quantum Fokker-Planck Master Equation; Maxwell s demon; Quantum dots; Full counting statistics; Generalized Quantum Measurements; Thermodynamics; Physics and Astronomy;

    Abstract : Control and feedback operation of quantum systems have in recent years gained a lot of interest since they are fundamental to achieving functional quantum information processing systems but also of great importance in applications of information to energy conversion within quantum thermodynamics. This thesis has treated a new formalism for feedback control of quantum systems. READ MORE

  3. 2. One-Dimensional Velocity Distributions of Fast Ions under RF Heating Including Doppler Shift in Tokamaks

    University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Author : Lukas Bähner; [2022]
    Keywords : plasma; fusion; ICRH; Ion Cyclotron Resonance Heating; RF; radio frequency; Fokker-Planck equation; Fokker-Planck solver; quasilinear operator; Coulomb collision; Doppler shift; velocity distribution; local temperature; plasma; fusion; ICRH; joncyklotronuppvärmning; RF; radiofrekvens; Fokker-Planck-ekvationen; Fokker-Planck-lösare; kvasilinjär operator; Coulombkollisioner; Dopplerskift; hastighetsfördelning; lokal temperatur;

    Abstract : The goal of nuclear fusion research is to create a clean and virtually limitless energy source. In order to that, a plasma must be heated to hundreds of millions degrees Celsius. A commonly used heating mechanism is ion cyclotron resonance heating, where antennas emit radio waves into the plasma. READ MORE

  4. 3. Model-Based Output-Only Identication of Coupled Thermoacoustic Modes

    University essay from KTH/MWL Marcus Wallenberg Laboratoriet

    Author : Michael Kristian Pau; [2017]
    Keywords : ;

    Abstract : A model-based output-only method for identifying from time-series data the parameters that determine the dynamics of a stochastically forced thermoacoustic oscillator has previously been implemented in the case of a single standing thermoacoustic mode. This thesis presents an extension of the method in question to two coupled standing modes at the same frequency. READ MORE

  5. 4. Discretization of the Dirac delta function for application in option pricing

    University essay from Uppsala universitet/Avdelningen för beräkningsvetenskap

    Author : Håkan Öhrn; Adam Lindell; [2016]
    Keywords : ;

    Abstract : This paper compares two different approximations of the Dirac deltafunction used in a Fokker-Planck equation. Both methods deal with the singularity problem in the initial condition. The Dirac delta approximation, constructed in MATLAB with a method derived by Tornberg and Engquist, was compared to an already given method Aït-Sahalia. READ MORE

  6. 5. A Particle Dispersion Model backward in time for the Stably Stratied Boundary Layer

    University essay from Institutionen för fysik

    Author : Erik Sandström; [2011]
    Keywords : ;

    Abstract : At present FOI has a forward model for simulations of particle dispersion in the stablystratied boundary layer, based on the Langevin model and the Fokker-Planck equation.This thesis project aims to complement that model for the case of predicting the origin of aspecied dispersion given the location of the particles at a given time after the start of thedispersion. READ MORE