20.500.12556/RUL-177729 Minimal model of an artificial topological material realized in a two-terminal Josephson junction threaded by Aharonov-Casher fluxes We investigate a minimal model of a two-terminal Josephson junction with conventional superconducting (SC) leads and a pair of interconnected quantum dots in the presence of two Aharonov-Casher (AC) fluxes. The Andreev bound-state spectrum features Weyl nodes within a three-dimensional synthetic Brillouin zone defined in the space of these AC fluxes and the SC phase difference. The aim is to determine the location and topological charge of these nodes by probing the Berry curvature on closed surfaces that may enclose them. This is achieved by adiabatically varying the superconducting phase difference and AC fluxes along a path on these surfaces and measuring the associated currents. We define the kinematic curvature as the cross product of a tangent vector along the path and the vector of these currents. In the adiabatic regime, the path-averaged kinematic curvature provides a quantized response equal to the topological charge enclosed by the surface, provided the path uniformly and densely covers it. Andreev bound states Josephson effect mesoscopics topological phases of matter S-matrix method in transport vezana stanja Andreeva Josephsonov pojav topološe faze snovi true false true Angleški jezik Slovenski jezik Članek v reviji 2026-01-05 14:03:03 2026-01-05 14:03:05 2026-01-07 03:48:53 0000-00-00 00:00:00 2025 0 0 Str. 245424-1-245424-6 iss. 24 Vol. 112 2025 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 538.9 2469-9950 10.1103/mqt7-qzwc 263440899 mqt7-qzwc.pdf mqt7-qzwc.pdf 1 09E74E2274FAE7ED67C6C89F99F8CA32 0c7a8c86eb7fc2df52b497fef03beea6ad9f4206a1220fc082caff86301b0746 0902d01a-ea37-11f0-bf92-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=224971 https://journals.aps.org/prb/abstract/10.1103/mqt7-qzwc 0 0eaf3a49-ea37-11f0-bf92-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=224972 Fakulteta za matematiko in fiziko 0 0 0