Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 5 of 5 for “"quasiparticle states"”.
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Theory of polaron mobility
… 0 These are: (1) description in terms of quasiparticle states, (2) description in terms of thermodynamic GreenYs functions~ The first approach leads naturally to an S matrix formulation of polaron transport~ The second leads to the Kadanoff-Baym transport equations 0 It is shown that both …
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On the microscopic theory of liquid ⁴He
… The calculated strength Z(k) of the one quasiparticle excitation and the contribution of the two quasiparticle states to S(k,w) are in semiquantitative agreement with those inferred from the data. Finally, the structure of the excitations' is studied by evaluating the change [equation] in …
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Spektroskopie im superdeformierten Minimum von 240 Pu
… the last years, the K-purity of the isomer states populated with low spins allows for a clear separation of vibrational and rotational excitations. Therefore low-lying collective vibrational bands could be identified unambiguously as K^π i=0^-, 1^- and 2^- -octupole bands, as well as the …
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Charge dynamics in superconducting double dots
… thesis investigates transitions between quantum states in superconducting double dots (SDDs), a nanoscale device consisting of two aluminium superconducting islands coupled together by a Josephson junction, with each dot connected to a normal state lead. The energy landscape consists of a two …
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Physics and applications of magnetic interactions in topological insulators
… a 3D TI creates a mass gap in the Dirac surface states and generates a quantum anomalous Hall effect (QAHE). Although this platform has long been proposed for technological applications ranging from topological transistors to qubits for quantum computing, the microscopic details of the proximity …