Quantum effects in the background of a topological defect
DIPC Seminars
- Speaker
-
Yurii Sitenko, Bogolyubov Institute for Theoretical Physics, National Academy of Sciences of Ukraine, Kyiv, Ukraine
- When
-
2023/02/07
13:00 - Place
- Hybrid Seminar: Donostia International Physics Center
- Add to calendar
- iCal
At present much attention is paid to the study of nonperturbative effects in
quantum systems, arising as a consequence of interaction of quantized fields
with various configurations of classical fields. Especial interest is to the
investigation of the influence of configurations with nontrivial topology
(domain walls, vortices, monopoles, or, in general, topological defects) on
the properties of quantum systems. There is a need, in this regard, to take
account of the finite size of a topological defect and to set up a boundary
condition on its edge. Our idea consists in the employment of the most
general boundary conditions ensuring the impenetrability of quantum matter
fields into the interior of a topological defect; in mathematical parlance,
this means the condition of self-adjointness for the appropriate quantum-
mechanical operator of energy. We set the task of discovering effects which
are induced by a topological defect in general case in the ground state of
quantum matter system. Further analysis and the requirement of physical
plausibility of obtained results may restrict the ambiguity in the choice of
boundary conditions. In this case, there is an opportunity of the unambiguous
determination of effects which are induced by a topological defect in quantum
matter.
Host: Aitzol García
Zoom: [https://dipc-org.zoom.us/j/94824470043](https://dipc-
org.zoom.us/j/94824470043)
YouTube: [https://youtu.be/C2JTm38bKC0](https://youtu.be/C2JTm38bKC0)