Nanophysics

Enrollment into the program, familiarity with the content of Quantum mechanics course.
 

Materials in nanotechnology: Realisation of nanostructures in semiconductors. Carbon based nanostructures: C60, carbon nanotubes and carbon monolayers. Metalic quantum dots. Nanowires. Molecular nanostructures. Experimental methods for the analysis of nanomaterials: physics of atomic force microscope and scanning tunneling microscope.

Electronic properties of nanostructures: Quantized conductance and other basic electronic properties of quantum dots, quantum wires and two dimensional electronic gas. Ballistic electron transport, tunneling, noise, Coulomb blockade, single electron transistor, Aharonov-Bohm effect, quantum Hall effect, Kondo effect. Basic microscopic models relevant to nano structures.

Quantum information processing: Quantum entanglement. Examples of the realisation of quantum bits. Fundamental theorems about quantum bits: no-cloning, destilation, error correction, quantum teleportation. Single and double qubit gates. Examples and application of quantum computing algoritms.

Izbrana poglavja iz učbenikov:
C. Kittel, Introduction to solid state physics (John Wiley & Sons, 2005 ali kasnejša izdaja).
W. Rainer, Nanoelectronics and Information Technology (John Wiley & Sons, 2005).
D.K. Ferry and S.M. Goodnick, Transort in nanostructures (Cambridge University Press, 2001).
S. Datta, Electronic transport in mesoscopic systems (Cambridge University Press, 1997).
N.D. Mermin, Quantum Computer Science (Cambridge University Press, 2007).

Application of theoretical methods for description and analysis of real mesoscopic systms as are quantum dots, quantum wires, thin layers etc.

Knowledge and understanding:
Basic understanding of nano materials and typical effects of ene and two dimensional systems. Application of methods of statistical and quantum physics in mesoscopic systems.

Application:
The analysis of equilibrium and non-equilibrium phenomena in nano materials and nano devices.

Reflection:
Critical evaluation of theoretical predictions using experimental results.


Transferable skills:
Understanding of phenomena and their explanation using experimental results.

Lectures, seminar excercises, home work, tutorial.

Written exam
Oral exam
5 - 10, a student passes the exam if he is graded from 6 to 10

• Exact nonadiabatic holonomic transformations of spin-orbit qubits, Tilen Čadež, John H. Jefferson, and Anton Ramšak, Phys. Rev. Lett. 112, 150402 (2014).
• Thermal effects on a nonadiabatic spin-flip protocol of spin-orbit qubits, Brecht Donvil, Lara Ulčakar, Tomaž Rejec, and Anton Ramšak, Phys. Rev. B 101, 205427 (2020).
• Qubit transformations on Rashba ring with periodic potential, Ambrož Kregar and Anton Ramšak, New J. Phys. 22, 083048 (2020).
• Extending third quantization with commuting observables: a dissipative spin-boson model, Luka Medic, Anton Ramšak, and Tomaž Prosen, J. Phys. A 57, 085301 (2024).