Essays about: "GPE"

Found 5 essays containing the word GPE.

  1. 1. A numerical investigation of Anderson localization in weakly interacting Bose gases

    University essay from KTH/Numerisk analys, NA

    Author : Crystal Ugarte; [2020]
    Keywords : Applied mathematics; finite elements; eigenvalue solver; eigenvalue problem; Bose-Einstein Codensate; Finita elementmetoden; tillämpad matematik; Bose-Einstein kondensat; egenvärdesalgoritm; egenvärdesproblem;

    Abstract : The ground state of a quantum system is the minimizer of the total energy of that system. The aim of this thesis is to present and numerically solve the Gross-Pitaevskii eigenvalue problem (GPE) as a physical model for the formation of ground states of dilute Bose gases at ultra-low temperatures in a disordered potential. READ MORE

  3. 2. Numerical Simulation of Soliton Tunneling

    University essay from

    Author : Matilda Tiberg; Elias Estensen; Amanda Seger; [2020]
    Keywords : soliton; GPE; gross pitaevskii; Schrödinger; step potential; summation by parts; SBP-SAT; Simultaneous approximation term; SAT; Projection; SBP-Projection; finite differences; boundary treatment; interface treatment;

    Abstract : This project studied two different ways of imposing boundary conditions weakly with the finite difference summation-by-parts (SBP) operators. These operators were combined with the boundary handling methods of simultaneous-approximation-terms (SAT) and the Projection to impose homogeneous Neumann and Dirichlet boundary conditions. READ MORE

  4. 3. Flexibility or coerced resilience: Analysing the role of flex crops in the global production ecosystem

    University essay from Stockholms universitet/Stockholm Resilience Centre

    Author : Robin Lindström; [2020]
    Keywords : Global Production Ecosystems; flex crops; resilience;

    Abstract : Large parts of Earth’s natural ecosystems have been converted into simplified production system. These production systems, named the Global Production Ecosystems (GPE) are characterised by homogenised and industrial production, that delivers predictable yields of biomass and is highly connected through global trade. READ MORE

  5. 4. Our Common Sea : Global Environmental Governance and The Marine Stewardship Council Story

    University essay from Linköpings universitet/Institutionen för ekonomisk och industriell utveckling

    Author : Chloe Beemer; [2019]
    Keywords : ;

    Abstract : Fish. Why do fish matter? Fish are the main source of protein for three billion people on Earth (World Wildlife Fund, 2019), that is roughly 39 percent of the global population (United Nations, 2019, p. 11). Food, in particular, is essential to politics, as it literally fuels the brainpower of mankind. READ MORE

  6. 5. Development of a framework for creating cross-platform TV HTML5 applications

    University essay from Linköpings universitet/Programvara och system

    Author : Rickard Eilert; [2015]
    Keywords : Smart TV; cross-browser; cross-platform; set-top box; JavaScript library; build system; framework; HTML5;

    Abstract : When developing HTML5 applications for TV platforms, the TV platforms provide, in addition to standardHTML5 functionality, also extra APIs for TV-specific features. These extra APIs differ between TVplatforms, and that is a problem when developing an application targeting several platforms. READ MORE