Sökning: "phase-space"

Visar resultat 1 - 5 av 50 avhandlingar innehållade ordet phase-space.

  1. 1. Phase space methods for computing creeping rays

    Detta är en avhandling från Stockholm : KTH

    Författare :Mohammad Motamed; KTH.; [2006]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Creeping Rays; Phase Space Methods; High Frequency Wave Scattering Problems; MATHEMATICS Applied mathematics Numerical analysis; MATEMATIK Tillämpad matematik Numerisk analys;

    Sammanfattning : This thesis concerns the numerical simulation of creeping rays and their contribution to high frequency scattering problems.Creeping rays are a type of diffracted rays which are generated at the shadow line of the scatterer and propagate along geodesic paths on the scatterer surface. LÄS MER

  2. 2. Pulse and hold switching current readout of superconducting quantum circuits

    Detta är en avhandling från Stockholm : KTH

    Författare :Jochen Walter; KTH.; [2006]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Josephson junction; readout; qubit; detector; frequency dependent damping; quantronium; phase-space; correlation analysis; NATURAL SCIENCES Physics; NATURVETENSKAP Fysik;

    Sammanfattning : Josephson junction qubits are promising candidates for a scalable quantum processor. Such qubits are commonly manipulated by means of sequences of rf-pulses and different methods are used to determine their quantum state. LÄS MER

  3. 3. Analysis of the phase space, asymptotic behavior and stability for heavy symmetric top and tippe top

    Detta är en avhandling från Matematiska institutionen

    Författare :Markus Sköldstam; Linköpings universitet.; Linköpings universitet.; [2004]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; symmetric top; tippe top; vertical rotation; truncated sphere; asymptotic trajectories; MATHEMATICS; MATEMATIK;

    Sammanfattning : In this thesis we analyze the phase of the heavy symmetric top and the tippe top. These tops are two examples of physical systems for which the usefulness of integrals of motion and invariant manifolds, in phase space picture analysis, can be illustratedIn the case of the heavy symmetric top, simplified proofs of stability of the vertical rotation have been perpetuated by successive textbooks during the last century. LÄS MER

  4. 4. The Klimontovich description of complex plasma systems Low frequency electrostatic modes, spectral densities of fluctuations and collision integrals

    Detta är en avhandling från Stockholm : KTH Royal Institute of Technology

    Författare :Panagiotis Tolias; KTH.; [2012]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; complex plasmas; dusty plasmas; Klimontovich equations; kinetic theory; dust acoustic waves; collision integrals;

    Sammanfattning : Plasmas seeded with solid particulates of nanometer to micron sizes (complex plasma systems) are a ubiquitous feature of intergalactic, interstellar and planetary environments but also of plasma processing applications or even fusion devices.Their novel aspects compared with ideal multi-component plasmas stem from (i) the large number of elementary charges residing on the grain surface, (ii) the variability of the charge over mass ratio of the dust component, (iii) the inherent openness and dissipative nature of such systems. LÄS MER

  5. 5. Inertial collisions in random flows

    Detta är en avhandling från Stockholm : KTH Royal Institute of Technology

    Författare :Kristian Gustafsson; Göteborgs universitet.; Gothenburg University.; [2011]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Collisions; nonlinear dynamical systems; particles and aerosols; random processes; suspensions; turbulent diffusion; turbulent flows;

    Sammanfattning : In nature, suspensions of small particles in fluids are common. An important example are rain droplets suspended in turbulent clouds. Such clouds can start to rain very quickly and the reason for this is still not fully explained, but it is believed that the turbulent motion in the cloud plays an important role. LÄS MER