20.500.12556/RUL-180873 Bethe-Ansatz diagonalization of the steady state of boundary driven integrable spin chains We find that the density operator of the nonequilibrium steady state (NESS) of XXZ spin chains with strong ‘sink and source’ boundary dissipation, can be described in terms of quasiparticles, with renormalized—dissipatively dressed—dispersion relation. The spectrum of the NESS is then fully accounted for by Bethe ansatz equations for an associated coherent system of these quasiparticles. The dissipative dressing generates an extra singularity in the dispersion relation, which significantly changes the NESS spectrum. In particular, it leads to a dissipation-assisted entropy reduction, due to the suppression in the NESS spectrum of plain wave-type Bethe states in favor of Bethe states localized at the boundaries. non-equilibrium steady state dissipative systems Bethe ansatz integrable spin chains kvantni večdelčni sistemi integrabilne spinske verige Bethejev nastavek disipativni sistemi true false true Angleški jezik Slovenski jezik Članek v reviji 2026-03-18 13:46:51 2026-03-18 13:46:51 2026-03-21 04:01:42 0000-00-00 00:00:00 2025 0 0 16 str. no. 45 Vol. 58 2025 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 536.93 1751-8121 10.1088/1751-8121/ae1643 272121347 Popkov_2025_J._Phys._A__Math._Theor._58_45LT01.pdf Popkov_2025_J._Phys._A__Math._Theor._58_45LT01.pdf 1 9FB11B9B328D9D8130E92CDD66DECD47 e4e9f5530794a3092b21c2b2a97450cc64efe7d66dac20af84c5279cfb43f351 9b723732-22c8-11f1-b0ab-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=230807 https://iopscience.iop.org/article/10.1088/1751-8121/ae1643 0 a2970676-22c8-11f1-b0ab-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=230808 Fakulteta za matematiko in fiziko 0 0 0