20.500.12556/RUL-113024 Switching pure states of the dissipative Heisenberg XXZ chain by local magnetic fields The effects of a local magnetic field on nonequilibrium stationary states (NESSs) of the open quantum XXZ spin chain are investigated with a Lindblad master equation approach in the limit of strong dissipation. The local magnetic field is applied to a single bulk spin of the chain while the ends are kept at fixed polarizations by dissipation. We show that suitable changes of the local magnetic field permit us to invert the spin current by switching pure NESS with opposite chiralities while preserving the state purity and achieving optimal transport. quantum statistical mechanics condensed matter physics kvantna statistična mehanika fizika kondenzirane snovi true false false Angleški jezik Slovenski jezik Neznano 2019-11-29 12:08:03 2019-11-29 12:08:04 2022-08-25 03:52:19 0000-00-00 00:00:00 2019 0 0 Str. 174430-1-174430-7 iss. 17 Vol. 100 2019 0000-00-00 PostprintKoncna Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 530.145 2469-9950 10.1103/PhysRevB.100.174430 3388772 2997348 RAZ_Popkov_Vladislav_2019.pdf RAZ_Popkov_Vladislav_2019.pdf 1 6FE1190413CFF118DFEEE2B9F0B1FBB4 692ad1448df3c3d36c3595fcd958b140614c5f298e280551db58bda983270a97 01f2624c-a1b8-11eb-a523-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=124979 https://journals.aps.org/prb/abstract/10.1103/PhysRevB.100.174430 1 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=140304 Fakulteta za matematiko in fiziko 0 0 0