20.500.12556/RUL-155057 Universality in the relaxation of spin helices under XXZ spin-chain dynamics We describe the dynamics of a transverse spin-helix state—a product state with spatially rotating magnetization—under XXZ spin chain evolution. Due to experimental relevance we especially focus on magnetization dynamics. At long times the $U$(1) symmetry of the Hamiltonian is restored, leading to the decay of transverse magnetization, which can be described as an exponential decay of a spatially harmonic profile. We show that the dependence of the short- and intermediate-time decay timescale, which in principle depends on all different parameters, like the wave vector of the initial helix, the anisotropy, etc., can be described well by a single scaling function. We also briefly discuss the evolution of magnetization current. statistical physics condensed matter physics spin chains helicoidal magnetic texture spin dynamics 1-dimensional spin chains quantum spin models Heisenberg model thermodynamics condensed matter materials applied physics statistična fizika fizika kondenzirane snovi spinske verige true false true Angleški jezik Slovenski jezik Članek v reviji 2024-03-18 13:06:21 2024-03-18 13:06:21 2024-09-25 04:18:32 0000-00-00 00:00:00 2023 0 0 14 str. iss. 23, art. 235408 Vol. 107 2023 0000-00-00 PostprintKoncna Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 536.93 2469-9950 10.1103/PhysRevB.107.235408 188718851 2303.16632_(1).pdf 2303.16632_(1).pdf 1 F3E52307FE96FF9E4FAC2F27725722C6 074012088c36697f558d785ac324bd8e8b28313c75b93fcbbc9e360920b6229f 06ec1bdf-7a3e-11ef-b232-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=191798 https://journals.aps.org/prb/abstract/10.1103/PhysRevB.107.235408 0 4504a304-e520-11ee-ae74-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=181793 Fakulteta za matematiko in fiziko 0 0 0