Sökning: "quantum nanodevices"
Visar resultat 1 - 5 av 7 avhandlingar innehållade orden quantum nanodevices.
1. Quantum and Ballistic Nanodevices
Sammanfattning : In this thesis, electron transport in quantum and ballistic devices was studied. The devices studied here were quantum wires, planar quantum dots, ballistic rectifiers, artificial functional materials, and three-terminal ballistic junctions. The possible application of such devices in the future nanoelectronics was also investigated. LÄS MER
2. Silicon nanowires, nanopillars and quantum dots : Fabrication and characterization
Sammanfattning : Semiconductor nanotechnology is today a very well studied subject, and demonstrations of possible applications and concepts are abundant. However, well-controlled mass-fabrication on the nanoscale is still a great challenge, and the lack of nanofabrication methods that provide the combination of required fabrication precision and high throughput, limits the large-scale use of nanodevices. LÄS MER
3. Decoherence and noise in High critical Temperature Superconducting quantum nanodevices
Sammanfattning : .... LÄS MER
4. Heat control in mesoscopic conductors - exploiting quantum effects and size confinement
Sammanfattning : This thesis deals with a theoretical analysis of heat currents, their exploitation and their control in nanoscale devices. The motivation for this study is twofold. (i) The development of nanoscale devices sets up the basis of many applications ranging from nanoelectronics to quantum technology. LÄS MER
5. Non-equilibrium fermions within lattice density functional theory: quantum transport and ultracold-atom phenomena
Sammanfattning : Cutting-edge technology needs small, ultrafast devices, operational in a wide range of regimes. This calls for solids with novel, unconventional and tailorable properties. Great progress is expected from materials in which electron-electron and electron-phonon correlations strongly affect the dynamics ( i.e. LÄS MER