20.500.12556/RUL-175244 Manifolds of exceptional points and effective Zeno limit of an open two-qubits system We analytically investigate the Liouvillian exceptional point manifolds (LEPMs) of a two-qubits open system, where one qubit is coupled to a dissipative polarization bath. Exploiting a $Z_2$ symmetry, we block diagonalize the Liouvillian and show that one symmetry block yields two planar LEPMs while the other one exhibits a more intricate, multisheet topology. The intersection curves of these manifolds provide a phase diagram for effective Zeno transitions at small dissipation. These results are consistent with a perturbative extrapolation from the strong Zeno regime. Interestingly, we find that the fastest relaxation to the nonequilibrium steady state occurs on LEPMs associated with the transition to the effective Zeno regime. nonequilibrium statistical mechanics quantum statistical mechanics open quantum systems neravnovesna statistična mehanika kvantna statistična mehanika odprti kvantni sistemi true false true Angleški jezik Slovenski jezik Članek v reviji 2025-10-22 16:08:27 2025-10-22 16:08:28 2025-12-07 04:04:33 0000-00-00 00:00:00 2025 0 0 Str. L050202-1-L050202-6 iss. 5 Vol. 111 2025 0000-00-00 PostprintKoncna Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 536.9 2469-9926 10.1103/PhysRevA.111.L050202 254357763 2412.13674v2.pdf 2412.13674v2.pdf 1 50092DC2CCA0C6EEBF6EB93D5EBB149F b0f1fd9c25a48617f3ac3c56673628c6a51bafeee8eb6a3bee7e2379897105fc 95717c01-af50-11f0-9328-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=220590 https://journals.aps.org/pra/abstract/10.1103/PhysRevA.111.L050202 0 9bd275ac-af50-11f0-9328-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=220591 Fakulteta za matematiko in fiziko 0 0 0