This paper investigates the validity of KNO scaling in UrQMD-simulated proton-proton (pp) collisions at root s = 2.76 TeV, 7 TeV and 13 TeV. The analysed data points are found to lie approximately on the universal curve psi(z) = Azexp(-Bz) with A = 4.61 +/- 0.12 and B = 2.19 +/- 0.07. The obtained simulation results have been compared with the experimental measurements reported by the ALICE and the CMS Collaborations, demonstrating good consistency and providing an insight into the energy dependence of particle production in high-energy pp collisions. Copyright (c) 2026 EPLA All rights, including for text and data mining, AI training, and similar technologies, are reserved.
The characterization of topological phases in disordered non-Hermitian systems remains a formidable challenge, as the non-Hermitian skin effect (NHSE) disrupts the conventional bulk-boundary correspondence and renders spectral invariants unreliable. In this letter, we propose the real part of the biorthogonal entanglement entropy as a precise, basis-independent diagnostic that cuts through this complexity. Investigating a disordered non-reciprocal Kitaev chain, we demonstrate that this entropic probe provides a robust, boundary-sensitive diagnostic that faithfully tracks the topological phase transition even in regimes where traditional winding numbers fluctuate wildly. Crucially, we uncover an anomalous critical scaling of the entanglement entropy: while the Hermitian limit follows standard conformal scaling (ceff approximate to 1.69), the non-Hermitian critical point exhibits a super-critical effective central charge of ceff approximate to 2.81. Within the studied system sizes (L <= 600), this enhancement is consistent with skin-effect-driven non-unitary behavior at the critical point. Our findings establish biorthogonal entanglement not only as a robust order parameter for the topological Anderson insulator but also as an experimentally accessible signature in topo-electric circuits. Copyright (c) 2026 EPLA All rights, including for text and data mining, AI training, and similar technologies, are reserved.
In this paper, anisotropic Bianchi type-III spatial homogeneity and Kantowski-Sachs cosmological model have been explored in the presence of the f(R, T) theory. In this we have sorted the proper curvature vector field by Riemann tensor of rank 6 & times; 6 in the f(R,T) gravity theory for Bianchi type-III and Kantowski-Sachs models with some algebraic operations and the process of direct integration. Classification of the mentioned spacetimes leads to seven cases based on a different function f(R, T) and their values. On analyzing all such instances, we find out that seven cases are possible. Among these cases, five admit non-trivial curvature collineations (CCs) which are vector space over an infinite dimensional field. For the other two examples, there are no proper CCs and the Killing vector fields (KVFs) are these homothetic vector fields (HVFs); this kind of HVFs becomes KVFs.
study the influence of the Aharonov-Bohm quantum phase on a quantum system described by a non-Hermitian Hamiltonian. We show that a non-Hermitian Hamiltonian has real energy eigenvalues which are influenced by the Aharonov-Bohm quantum phase. In addition, we show that persistent currents can arise. Finally, we calculate the revival times in this twodimensional system and show that they are influenced by Aharonov-Bohm quantum phase. Copyright c 2026 EPLA All rights, including for text and data mining, AI training, and similar technologies, are reserved.
This work explores a heuristic connection between modified black holes and the generalized uncertainty principle (GUP). Revisiting Bekenstein's analysis of a particle governed by the GUP and captured by a black hole with undetermined parameters, we find a class of modified Schwarzschild black holes that saturate the Bekenstein-Hawking entropy to the maximum extent. Although curvature singularities cannot yet be definitely ruled out, the modified black holes avoid complete evaporation and end up as zero-temperature remnants. The Hayward black hole is the simplest case, even though it is not the only choice. Copyright c 2026 EPLA
