Projects

• Brief description of the project
• Structure and properties of networks of nanoscopic magnetic wires
• Electronic structure of artificial atoms and molecules: spin-orbit coupling effects
• Computer simulations of quantum transport in semiconductor nanodevices
• Surfactants, polyelectrolytes and nanoparticles as building blocks for surface nanostructures
• Design and computer simulations of the nanodevices to applications in quantum computing
• Current induced magnetization switching (CIMS) and noise characterization of MgO based magnetic tunnel junctions (MTJs)
• Dynamics of nanostructural organization and activity of photosynthetic systems in natural and model membranes

In 2009 five more PhD positions will be opened:

• Computer modeling of biological nanostructures
• Surface and interface properties of metal-oxide magnetic nanostructures
• Hybrid organic-inorganic layered materials - precursors of semiconducting nanostructures
• Physical properties of multilayer thin films of Mg-Ti-V/Ni and their hydrides
• Nanostructures and stability of thin liquid layers

Supervisor:

prof. dr hab. Stanisław Bednarek (AGH) ()

Student:

Paweł Szumniak (WFiIS AGH)

Topic:

Design and computer simulations of the nanodevices to applications in quantum computing.

Foreign partner:

prof. F.M. Peeters, prof. B. Partoens. University of Antwerp Belgium

Brief description:

The thesis will concern a design and computer simulation of a nanodevice operating on spins of separate electrons or holes. The spin operations include the initial state preparation, spin rotation by an arbitrary angle and the final state read out, and they all should be performed with a probability close to 100%. The nanodevice will exploit the self-focusing effect of the single-electron wave function due to the interaction of the electron with the charge it induces on a surface of a conductor or in a two-dimensional electron gas confined in a quantum well. The self-focusing effect allows to transfer the electron between different location in the nanostructure with the probability close to 1, in form of a stable wave packet of a solitary wave character. The quantum bit will be stored in the spin degrees of freedom of electrons and holes. The phd student during his stay in Antwerp will benefit from the expertise of the Belgian partner in the description of the spin-orbit coupling and the multiband theories for electron states in semiconductors, which can also be useful for the nanodevice based on the spin states of the hole.

Students international exchange:

Visits of the phd-student in Antwerp:
Reporting period V-VI (12 months). The expertise of the Belgian partners in multiband theories and spin-orbit coupling will be useful for modelling the hole inducton.