Projects / Programmes
Classical and quantum transport in extended nano-structures
| Code |
Science |
Field |
Subfield |
| 1.02.00 |
Natural sciences and mathematics |
Physics |
|
| Code |
Science |
Field |
| P190 |
Natural sciences and mathematics |
Mathematical and general theoretical physics, classical mechanics, quantum mechanics, relativity, gravitation, statistical physics, thermodynamics |
quantum and classical transport, extended systems, nanostructures
Researchers (1)
| no. |
Code |
Name and surname |
Research area |
Role |
Period |
No. of publicationsNo. of publications |
| 1. |
22507 |
PhD Martin Horvat |
Physics |
Head |
2008 - 2010 |
76 |
Organisations (1)
Abstract
In the framework of the proposed project we intend to study the classical and quantum transport of particles or the group of particles through spatially extended structures. We are mainly interested how does transport depends on geometrical and dynamical properties of the structure, which can be given explicitly or just described statistically. The structure can also be quantized as in the quantum electro-magnetic field theory. We focus on two dynamically extreme cases i.e. chaotic and regular systems, where in the first dynamics is unpredictable and in the second totally predictable on the long time scale. Although the project is set quite generally we would like to discuss three concrete problems. In the first we study structures possessing unidirectional classical transport, where in classical picture transport is without losses, but in the quantum picture some finite losses are present. Development here can be used in general to reduce the transmission of the electromagnetic energy in waveguides and more specifically in construction of devices in which the wave-losses are undesired. In the problem we study systems in external magnetic field that breaks one of the symmetries of the system and consequently causes spatial asymmetry of the transport. This principle can be used to manipulate heat and electric conductivity and represents a great potential for more effective energy control. The third most interesting problem, from the theoretical and application point of view, is the discussion of a classical deterministic heat engine, where we focus on better understanding of the thermoelectric effect and its optimal dynamical regime for improving the efficiency of heat engines.
Significance for science
In the frame of the project we wrote publications in the field of extended systems and heat pumps, as well as in tangent areas such as studies of statistical properties, i.e. mixing, in dynamical systems. These publication represent an non-negligible contribution to the statistical and condense-matter physics and to the research of complex dynamics. The concrete results in the publications were gained by developing and applying new approaches and methods to discussed problems, which we see also as our contribution to the science.
Significance for the country
Especially the new results in the area of heat engines and refrigerators without moving parts based on the thermoelectric effect found in many materials may improve their efficiency and make the heat pumps more useful in specific applications. This implies grows of the industry involved with producing miniature efficient heat pumps and appearance of new industry branches, which are connected to our findings. Beside the scientific and potential applications is important to emphasise that the presented work is the result of manly Slovenian researchers and the accumulated knowledge contributes to the technical development of Slovenia.
Most important scientific results
Annual report
2008,
final report,
complete report on dLib.si
Most important socioeconomically and culturally relevant results
Annual report
2008,
final report,
complete report on dLib.si
