20.500.12556/RUL-155478 Kardar-Parisi-Zhang scaling in the Hubbard model We explore the Kardar-Parisi-Zhang (KPZ) scaling in the one-dimensional Hubbard model, which exhibits global $SU_c(2) \otimes SU_s (2)$ symmetry at half filling, for the pseudocharge and the total spin. We analyze dynamical scaling properties of high-temperature charge and spin correlations and transport. At half filling, we observe a clear KPZ scaling in both charge and spin sectors. Away from half filling, the $SU_c(2)$ charge symmetry is reduced to $U_c(1)$, while the $SU_s(2)$ symmetry for the total spin is retained. Consequently, transport in the charge sector becomes ballistic, while KPZ scaling is preserved in the spin sector. These findings confirm the link between non-Abelian symmetries and KPZ scaling in the presence of integrability. We study two settings of the model: one involving a quench from a bipartitioned state asymptotically close to the $T = \infty$ equilibrium state of the system, and another where the system is coupled to two Markovian reservoirs at the two edges of the chain. condensed matter physics Hubbard model fizika kondenzirane snovi Hubbardov model true false true Angleški jezik Slovenski jezik Članek v reviji 2024-04-04 09:34:13 2024-04-04 09:34:13 2024-04-05 11:50:30 0000-00-00 00:00:00 2023 0 0 Str. 235139-1-235139-13 iss. 23 Vol. 108 2023 0000-00-00 PostprintKoncna NiDoloceno NiDoloceno 0000-00-00 0000-00-00 2023-12-12 538.9 2469-9950 10.1103/PhysRevB.108.235139 191344643 2306.11540.pdf 2306.11540.pdf 1 9C42940C00A2CED3D91FC6602DEC5462 8f312cc82f0cfaf711f50a4d0ad22a813a290a436d90877e80c77d8be6d9590d 9b8d696d-f256-11ee-87dd-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=182388 https://journals.aps.org/prb/abstract/10.1103/PhysRevB.108.235139 0 a40b67ea-f256-11ee-87dd-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=182389 Fakulteta za matematiko in fiziko 0 0 0