Essays about: "perturbation solutions"

Showing result 1 - 5 of 9 essays containing the words perturbation solutions.

  1. 1. Characterization and Stabilization of Transverse Spatial Modes of Light in Few-Mode Optical Fibers

    University essay from Linköpings universitet/Informationskodning

    Author : Oscar Pihl; [2023]
    Keywords : spatial modes; Space division multiplexing; SDM; superpositions; LP-modes; few-mode fibers; quantum communication; quantum optics; adaptive optics; stochastic parallel gradient descent; SPGD; mode control; QKD; polarization controller; paddle controller; QRNG; quantum random number generator; spatial modes; perturbation effects;

    Abstract : With the growing need for secure and high-capacity communications, innovative solutions are needed to meet the demands of tomorrow. One such innovation is to make use of the still unutilized spatial dimension of light in communications, which has promising applications in both enabling higher data traffic as well as the security protocols of the future in quantum communications. READ MORE

  3. 2. Numerical Solutions and Parameter Sensitivity of the Lorenz System

    University essay from KTH/Skolan för teknikvetenskap (SCI)

    Author : Eira Larsson; Vilmer Ström; [2023]
    Keywords : Lorenz system; Dynamic Bifurcation; Periodic Parameter Perturbation; Chaos; Runge-Kutta; Shadowing Lemma;

    Abstract : In chaos theory there are many different problems still unsolved. One of which is the optimization of infinite time average functionals on manifolds. To try one of the different tools to solve this problem we want to find stable manifolds in chaotic dynamical systems. READ MORE

  4. 3. Multi-Objective Mixed-Integer Linear Optimisation of Aircraft Load Planning

    University essay from KTH/Optimeringslära och systemteori

    Author : Kristján Óttar Rögnvaldsson; [2019]
    Keywords : ;

    Abstract : A general multi-objective optimisation model is developed for the load planning decision process of a bulk loaded commercial aircraft, using the Airbus A321 fitted with additional fuel tanks as a baseline platform. The model’s input is a specific set of load items, with associated quantities, mass and volume. READ MORE

  5. 4. IR spectroscopy for vibrational modes : A semi-classical approach based on classical electrodynamicsand modern quantum mechanics

    University essay from Linnéuniversitetet/Institutionen för fysik och elektroteknik (IFE)

    Author : Ulf Oreborn; [2018]
    Keywords : ;

    Abstract : The atoms of a molecule are always restless and are constantly moving in one way or another.Apart from rotations and translations, they may vibrate in many different modes. They may moveradially toward or from each other, so called stretching. This can be done symmetrically or asymmetrically. READ MORE

  6. 5. Block Diagonalization Based Beamforming

    University essay from KTH/Teknisk informationsvetenskap

    Author : Darshan Patil; [2017]
    Keywords : ;

    Abstract : With increasing mobile penetration multi-user multi-antenna wireless communication systems are needed. This is to ensure higher per-user data rates along with higher system capacities by exploiting the excess degree of freedom due to additional antennas at the receiver with spatial multiplexing. READ MORE