TY  - JOUR
AU  - Mančić, Ana
AU  - Leykam, Daniel
AU  - Maluckov, Aleksandra
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10869
AB  - Modulational instability in topological photonic lattices enables the selective population of energy bands and generation of steady-state wavefields with well-defined topological invariants. This provides a way to measure bulk topological invariants, which determine the number of robust edge modes appearing at the lattice edges via the bulk-edge correspondence. Here we study numerically the process of wave thermalization arising from modulational instability in topological bands. We apply a grand canonical approach to compute the effective temperature β and chemical potential μ of the steady-state wavefields. The steady-state wavefields exhibit a strong wavevector k -dependence of β and μ throughout the Brillouin zone, suggesting the existence of a long-lived pre-thermal phase and the absence of thermalization for the moderate propagation times accessible using topological photonic lattices.
T2  - Physica Scripta
T1  - Band relaxation triggered by modulational instability in topological photonic lattices
VL  - 98
IS  - 5
SP  - 055513
DO  - 10.1088/1402-4896/accabb
ER  - 

@article{
author = "Mančić, Ana and Leykam, Daniel and Maluckov, Aleksandra",
year = "2023",
abstract = "Modulational instability in topological photonic lattices enables the selective population of energy bands and generation of steady-state wavefields with well-defined topological invariants. This provides a way to measure bulk topological invariants, which determine the number of robust edge modes appearing at the lattice edges via the bulk-edge correspondence. Here we study numerically the process of wave thermalization arising from modulational instability in topological bands. We apply a grand canonical approach to compute the effective temperature β and chemical potential μ of the steady-state wavefields. The steady-state wavefields exhibit a strong wavevector k -dependence of β and μ throughout the Brillouin zone, suggesting the existence of a long-lived pre-thermal phase and the absence of thermalization for the moderate propagation times accessible using topological photonic lattices.",
journal = "Physica Scripta",
title = "Band relaxation triggered by modulational instability in topological photonic lattices",
volume = "98",
number = "5",
pages = "055513",
doi = "10.1088/1402-4896/accabb"
}

Mančić, A., Leykam, D.,& Maluckov, A.. (2023). Band relaxation triggered by modulational instability in topological photonic lattices. in Physica Scripta, 98(5), 055513.
https://doi.org/10.1088/1402-4896/accabb

Mančić A, Leykam D, Maluckov A. Band relaxation triggered by modulational instability in topological photonic lattices. in Physica Scripta. 2023;98(5):055513.
doi:10.1088/1402-4896/accabb .

Mančić, Ana, Leykam, Daniel, Maluckov, Aleksandra, "Band relaxation triggered by modulational instability in topological photonic lattices" in Physica Scripta, 98, no. 5 (2023):055513,
https://doi.org/10.1088/1402-4896/accabb . .