Sökning: "quantum resonances"

Visar resultat 1 - 5 av 48 avhandlingar innehållade orden quantum resonances.

  1. 1. Quantum Dynamics of Molecular Systems and Guided Matter Waves

    Författare :Mauritz Andersson; Tamar Seideman; Uppsala universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; Quantum chemistry; quantum dynamics; femtosecond spectroscopy; photoelectron spectroscopy; resonances; nonadiabatic interaction; coherent state representation; adaptive numerical method; Kvantkemi; Quantum chemistry; Kvantkemi; Quantum Chemistry; kvantkemi;

    Sammanfattning : Quantum dynamics is the study of time-dependent phenomena in fundamental processes of atomic and molecular systems. This thesis focuses on systems where nature reveals its quantum aspect; e.g. in vibrational resonance structures, in wave packet revivals and in matter wave interferometry. LÄS MER

  2. 2. Resonances, dissipation and decoherence in exotic and artificial atoms

    Författare :Mikhail Genkin; Eva Lindroth; Lars Bojer Madsen; Stockholms universitet; []
    Nyckelord :quantum dissipation; quantum decoherence; open quantum systems; resonances; Physics; fysik;

    Sammanfattning : There are several reasons why exotic and artificial atoms attract the interest of different scientific communities.In exotic atoms, matter and antimatter can coexist for surprisingly long times. Thus, they present a unique natural laboratory for high precision antimatter studies. LÄS MER

  3. 3. Ways of determining and characterising resonances in scattering processes

    Författare :Ksenia Shilyaeva; Nils Elander; Dage Sundholm; Stockholms universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; quantum scattering theory; complex scaling; resonances; Molecular physics; Molekylfysik; Physics; fysik;

    Sammanfattning : Scattering cross sections very often display structures. To clarify if these structures correspond to resonances one has to check if they are poles of the scattering matrix (S-matrix) in the fourth quadrant of the complex momentum plane. Furthermore, the states corresponding to these poles also need to have an appropriate scattering amplitude. LÄS MER

  4. 4. Bound states and resonances in three-body system

    Författare :Yarevsky Evgeny; Thomas N. Rescigno; Stockholms universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP; Three-body problem; Total angular momentum representation; Resonances; Complex Scaling Method; Finite Element Method; Eigenvalues problem.; Physics; fysik;

    Sammanfattning : The quantum three-body problem plays an important role in different branches of the modern physics. In the nuclear, atomic and molecular physics there exist a number of systems whose behaviour is naturally described in this framework. LÄS MER

  5. 5. Quantum Scattering of Atoms and Molecules from Low-Index Copper Surfaces

    Författare :Petter Linde; Göteborgs universitet; Göteborgs universitet; Gothenburg University; []
    Nyckelord :surface; physisorption; potential; atoms; molecules; Debye-Waller factor; copper; diffraction; rotational excitations; resonances; semiclassical model; molecular beam; laser induced thermal desorption;

    Sammanfattning : .... LÄS MER