20.500.12556/DKUM-86153 Multifractality in quasienergy space of coherent states as a signature of quantum chaos We present the multifractal analysis of coherent states in kicked top model by expanding them in the basis of Floquet operator eigenstates. We demonstrate the manifestation of phase space structures in the multifractal properties of coherent states. In the classical limit, the classical dynamical map can be constructed, allowing us to explore the corresponding phase space portraits and to calculate the Lyapunov exponent. By tuning the kicking strength, the system undergoes a transition from regularity to chaos. We show that the variation of multifractal dimensions of coherent states with kicking strength is able to capture the structural changes of the phase space. The onset of chaos is clearly identified by the phase-space-averaged multifractal dimensions, which are well described by random matrix theory in a strongly chaotic regime. We further investigate the probability distribution of expansion coefficients, and show that the deviation between the numerical results and the prediction of random matrix theory behaves as a reliable detector of quantum chaos. quantum chaos multifractal analysis kicked top coherent states kvantni kaos multifraktalna analiza koherentna stanja true false true MDPI Angleški jezik Slovenski jezik Znanstveno delo 2023-10-13 13:59:00 2023-10-13 14:43:57 2023-10-16 09:16:19 0000-00-00 00:00:00 2021 0 0 Str. 1-19 Št. 10, št. članka 1347 Letn. 23 2021 0000-00-00 Zaloznikova Objavljeno NiDoloceno 2021-09-11 2021-10-12 2021-10-15 530.145 81221379 1099-4300 Multifractality_in_quasienergy_space_Wang_2021.pdf Multifractality_in_quasienergy_space_Wang_2021.pdf 1 D78A09D3CB059ED70F039220F001B5DE 981845628da7de4868757bdca106388b8be145f5744068d55e6a85cfdd7faa8d d45f53ba-69c5-11ee-b6cb-00155d000105 https://dk.um.si/Dokument.php?lang=slv&id=173557 https://www.mdpi.com/1099-4300/23/10/1347 1 e6904d92-69bf-11ee-b6cb-00155d000105 https://dk.um.si/Dokument.php?lang=slv&id=173556 Univerza v Mariboru 0 0 0