Department of Complex Matter
Jamova cesta 39, 1000 Ljubljana, Slovenia

Dynamics of Quantum matter

We explore non-equilibrium many-body dynamics in quantum systems that experience symmetry-breaking, topological, or jamming transitions. These systems encompass superconductors, charge-density wave, and magnetic materials.

Experimental Soft Matter Physics

The research is conducted within the “Light and Matter” research program. The interaction of light with matter is one of the most important fields of physics and optical processes are indispensable in many branches of modern industry.

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April 11, 2024
Dr. Dragan Mihailović, a leading researcher in the field of quantum systems at the Jožef Stefan Institute (IJS), has successfully won the third project of the European Research Council (ERC), HIMMS (High-Resolution ...
Home / Events / QT Future Seminar “The butterfly effect in a Sachdev-Ye-Kitaev quantum dot sys…

QT Future Seminar “The butterfly effect in a Sachdev-Ye-Kitaev quantum dot system”

January 4, 2024 , 14:00 , Kuščerjev seminar, Jadranska 19

Aleksey Lunkin, Landau Institute Moscow

We study the out-of-time-order correlation function (OTOC) in a lattice extension of the Sachdev-Ye-Kitaev (SYK) model with quadratic perturbations. The results obtained are valid for arbitrary time

scales, both shorter and longer than the Ehrenfest time. We demonstrate that the region of well-developed chaos is separated from the weakly chaotic region by the “front region”, which moves ballistically across the lattice. The front velocity is calculated for various system’s parameters, for the first time for SYK-like models.