20.500.12556/RUL-182826 Dissipatively dressed quasiparticles in boundary-driven integrable spin chains The nonequilibrium steady state (NESS) of integrable spin chains experiencing strong boundary dissipation is accounted for by introducing quasiparticles with a renormalized—dissipatively dressed—dispersion relation. This allows us to evaluate the spectrum of the NESS in terms of the Bethe Ansatz equations for a related coherent system that has the same set of eigenstates, the so-called dissipation-projected Hamiltonian. We find explicit analytic expressions for the dressed energies of the XXX and XXZ models with effective, i.e., induced by the dissipation, diagonal boundary fields, which are U(1) invariant, as well as the XXZ and XYZ models with effective nondiagonal boundary fields. In all cases, the dissipative dressing generates an extra singularity in the dispersion relation, substantially altering the NESS spectrum with respect to the spectrum of the corresponding coherent model. integrable systems spin chains open quantum systems integrabilni sistemi spinske verige odprti kvantni sistemi true false true Angleški jezik Slovenski jezik Članek v reviji 2026-05-25 10:42:22 2026-05-25 10:42:23 2026-05-26 04:35:51 0000-00-00 00:00:00 2026 0 0 Str. 032211-1-032211-15 iss. 3 Vol. 113 2026 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 530.145 2469-9926 10.1103/2zbl-3twm 279215875 https://journals.aps.org/pra/abstract/10.1103/2zbl-3twm 1 5176a39f-5815-11f1-b0ab-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=234376 2zbl-3twm.pdf 2zbl-3twm.pdf 1 3540E7D5733F04471FB32A8977D26491 c7a391a397152cd822ce8b31c0002412f3567946601dfa3597154a85a3928031 91faf1fc-5815-11f1-b0ab-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=234377 Fakulteta za matematiko in fiziko 0 0 0