Sökning: "Floquet states"

Hittade 3 avhandlingar innehållade orden Floquet states.

1. 1. Symmetry-protected topological phases: From Floquet theory to machine learning

   Författare :Oleksandr Balabanov; Göteborgs universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Topological quantum matter; neural networks; Floquet theory;

   Sammanfattning : It is by now a well known fact that boundary states in conventional time-independent topological insulators are protected against perturbations that preserve relevant symmetries. In the first part of this thesis, accompanying Papers A - C, we study how this robustness extends to time-periodic (Floquet) topological insulators. LÄS MER

3. 2. Diagrammatic many-body theory for atoms in high-intensity laser fields

   Författare :Lars Jönsson; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; high-intensity laser-atom interaction; multiphoton processes; photoelectron spectra; Floquet states; many-electron effects; Diagrammatic many-body theory;

   Sammanfattning : .... LÄS MER

4. 3. On the use of the uniform complex scaling-method for studying time-dependent systems

   Författare :Jakob Bengtsson; Eva Lindroth; Nimrod Moiseyev; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; kemisk fysik; Chemical Physics;

   Sammanfattning : During the last few decades, laser technology has gone through a series of revolutionary improvements. With light pulses in the sub-femtosecond regime now experimentally available, an explicit time-dependent Hamilton operator is indispensable for a proper theoretical description of the interactions of atoms with such pulses. LÄS MER