20.500.12556/RUL-155493 On two non-ergodic reversible cellular automata, one classical, the other quantum We propose and discuss two variants of kinetic particle models—cellular automata in 1 + 1 dimensions—that have some appeal due to their simplicity and intriguing properties, which could warrant further research and applications. The first model is a deterministic and reversible automaton describing two species of quasiparticles: stable massless matter particles moving with velocity ±1 and unstable standing (zero velocity) field particles. We discuss two distinct continuity equations for three conserved charges of the model. While the first two charges and the corresponding currents have support of three lattice sites and represent a lattice analogue of the conserved energy–momentum tensor, we find an additional conserved charge and current with support of nine sites, implying non-ergodic behaviour and potentially signalling integrability of the model with a highly nested R-matrix structure. The second model represents a quantum (or stochastic) deformation of a recently introduced and studied charged hardpoint lattice gas, where particles of different binary charge (±1) and binary velocity (±1) can nontrivially mix upon elastic collisional scattering. We show that while the unitary evolution rule of this model does not satisfy the full Yang–Baxter equation, it still satisfies an intriguing related identity which gives birth to an infinite set of local conserved operators, the so-called glider operators. cellular automata ergodicity ergodicity breaking integrability dynamical systems celični avtomati ergodičnost zlom ergodičnosti integrabilnost dinamični sistemi true false true Angleški jezik Slovenski jezik Članek v reviji 2024-04-04 14:19:11 2024-04-04 14:19:12 2024-04-05 03:46:24 0000-00-00 00:00:00 2023 0 0 13 str. iss. 5, art. no. 739 Vol. 25 Apr. 2023 0000-00-00 Zaloznikova NiDoloceno NiDoloceno 0000-00-00 0000-00-00 2023-04-30 536.9 1099-4300 10.3390/e25050739 191436035 entropy-25-00739-v2.pdf entropy-25-00739-v2.pdf 1 F2D8E96BE2928068F432956F7F6438D5 f067a4eab7b5da88695c5f03ff80b0a1800bcc969cd1866d54a2ac78e0c2d918 bd1bccc9-f27d-11ee-87dd-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=182420 https://www.mdpi.com/1099-4300/25/5/739 0 c3922ce1-f27d-11ee-87dd-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=182421 Fakulteta za matematiko in fiziko 0 0 0