Decoherence in microscopic two-level systems and in analog quantum simulators
Abstract:
Quantum simulation is a promising field for first applications of quantum computers.
In the first part of this work we study effects of decoherence in analog quantum simulators using many-body methods for systems out of equilibrium.
In the second part we study the interplay between two important sources of decoherence, namely quasiparticle excitations in superconductors and low-energy excitations in amorphous layers. The latter are described within the phenomenological tunneling-system model.
In the first part of this work we study effects of decoherence in analog quantum simulators using many-body methods for systems out of equilibrium.
In the second part we study the interplay between two important sources of decoherence, namely quasiparticle excitations in superconductors and low-energy excitations in amorphous layers. The latter are described within the phenomenological tunneling-system model.
| Zugehörige Institution(en) am KIT | Institut für Theoretische Festkörperphysik (TFP) |
| Publikationstyp | Hochschulschrift |
| Publikationsjahr | 2017 |
| Sprache | Englisch |
| Identifikator | urn:nbn:de:swb:90-743498 KITopen-ID: 1000074349 |
| Verlag | Karlsruher Institut für Technologie (KIT) |
| Umfang | XII, 157 S. |
| Art der Arbeit | Dissertation |
| Fakultät | Fakultät für Physik (PHYSIK) |
| Institut | Institut für Theoretische Festkörperphysik (TFP) |
| Prüfungsdatum | 14.07.2017 |
| Schlagwörter | Quantum computing; Quantum simulation; Analog quantum simulation; Decoherence; Two-level-systems; Quasiparticles; Superconducting qubits |
| Referent/Betreuer | Schön, G. |