Contents

Bulletin of the Russian Academy of Sciences: Physics

Vol. 90, No. 7, 2026

Application of Telegraph Noise in Nonlinear Optics in Terms of Stochastic Differential Equations

A. M. Basharov and S. O. Elyutin p. 999  abstract

Stochastic Differential Equations in the Theory of Open Quantum Systems

A. M. Basharov p. 1006  abstract

Laser Spectroscopy of Er3+ Ions in Crystals Promising for Optical Quantum Memory

K. I. Gerasimov, M. M. Minnegaliev, and S. A. Moiseev p. 1012  abstract

Spectral Conversion of Ultraviolet Radiation Using Down-Conversion Eu3+-Activated Phosphors Based on Gd2O3 and NaGdF4

K. S. Zimin, R. M. Gataullina, J. R. Shayimova, L. A. Nurtdinova, A. G. Shmelev, D. K. Zharkov, A. N. Solodov, L. M. Amirova, E. O. Mityushkin, A. V. Leontyev, O. Kh. Khasanov, and V. G. Nikiforov p. 1021  abstract

Time-Resolved Magneto-Optical Spectroscopy of Magnetic Inhomogeneities in Fe3Al Thin Films

A. V. Petrov, A. Kh. Kadikova, D. A. Makarov, I. V. Yanilkin, A. I. Gumarov, A. G. Kiyamov, B. F. Gabbasov, L. R. Tagirov, and R. V. Yusupov p. 1030  abstract

Spatial‑Vortex Structure of Optical Fields in the High‑Frequency Band Gap of a 2D Photonic Crystal: Theory and Computational Experiment

A. D. Pryamikov and V. V. Klimov p. 1039  abstract

Dynamics of a Nonlinear Polariton Mode near the Threshold of Nonstationary Generation of Superradiant Laser

V. V. Kocharovsky and E. R. Kocharovskaya p. 1051  abstract

Spin-to-Intrinsic Orbital Angular Momentum Conversion in a Focused Gaussian Beam: A Paraxial Approach

E. A. Bibikova and N. D. Kundikova p. 1060  abstract

Long-Term Storage Effect on the Luminescence Properties of a Vitrified Film of an Anisometric Terbium(III) β-Diketonate Complex

D. V. Lapaev, V. G. Nikiforov, R. M. Ziyatdinova, A. A. Knyazev, and Yu. G. Galyametdinov p. 1065  abstract

Formation of Quantum Vortices at the Ionization of an Excited 2D Hydrogen Atom by an Ultrashort Pulse

N. V. Larionov and Yu. L. Kolesnikov p. 1075  abstract

Quantum-Resistant Consensus with Adaptive Hierarchical Architecture for a National Blockchain System

A. S. Petrenko p. 1084  abstract

Two-Color Light Bullets in Crystals with Quasi-Resonant Impurity Centers

S. V. Sazonov p. 1094  abstract

Hybrid Geophone with a Photodiode Position Sensor

M. E. Sibgatullin and L. R. Gilyazov p. 1099  abstract

Quenching Luminescence of Porphyrins by Molecular Oxygen in Solvents

A. S. Starukhin, A. A. Romanenko, D. V. Novitsky, A. Yu. Ilyin, and T. A. Pavich p. 1105  abstract

On Non-Gaussian Linear Quantum Optics

A. E. Teretenkov p. 1112  abstract

Tiling Photonic Topological Insulator with an Electrically Controlled Cholesteric Switch

P. N. Kim, M. A. Lesnoy, M. N. Krakhalev, and I. V. Timofeev p. 1118  abstract

Generalized Langevin Dynamics in a Broadband Quantized Field

A. I. Trubilko p. 1125  abstract

Relaxation Operator of an Atomic System in the Field of a Single-Photon Broadband Wave Packet

A. I. Trubilko p. 1136  abstract

Dual Quantum Properties of an Atomic–Photon Cluster

A. I. Trubilko p. 1143  abstract

Uniform Positioning of Micro-Objects Using Arrays of Optical and Optothermal Traps

V. K. Uryupina, N. N. Losevsky, S. A. Samagin, S. P. Kotova, and A. M. Mayorova p. 1148  abstract

Two Ways for Measuring the Collisional Decay Times of the Orientation and Alignment of the 3P1 level of 174Yb Atoms Using Adjacent Quantum Transitions

E. B. Khvorostov, S. A. Kochubei, and N. N. Rubtsova p. 1155  abstract

Luminescence of Yb3+ Ions in CsPbCl3 Perovskite Quantum Dots

J. R. Shayimova, L. A. Nurtdinova, A. G. Shmelev, D. K. Zharkov, A. N. Solodov, E. O. Mityushkin, A. V. Leontyev, and V. G. Nikiforov p. 1162  abstract

Molecular-Dynamic Simulation of Functional-Spacer Lipids Self-Assembly Processes and Their Physical and Chemical Characterisation

C. N. Grin, V. A. Dimitreva, V. A. Oleinikov, and A. V. Zalygin p. 1171  abstract

C-Band Fiber-Based Single-Photon Source with Continuous-Wave Laser Pumping

M. A. Smirnov and M. M. Minnegaliev p. 1177  abstract

Influence of Intensity Ratio of Resonant Spectral Components on Q-Factor of Dual-Frequency Doppler-Free Resonance in 87Rb Atoms

K. M. Sabakar, E. A. Tsygankov, D. S. Chuchelov, M. I. Vaskovskaya, S. A. Zibrov, V. V. Vassiliev, and V. L. Velichansky p. 1184  abstract

Approaching the Depairing Current in Two-Layer NbN–Mo Structures

M. A. Dryazgov, Yu. P. Korneeva, N. V. Porokhov, M. Yu. Levichev, N. N. Osipov, D. Yu. Vodolazov, A. A. Korneev, and M. A. Tarkhov p. 1191  abstract

Erratum

Erratum to: Influence of Conductive Element Design on Impedance and Strain-Sensitive Properties of Polymer Nanocomposite

E. V. Tomberg, S. Yu. Voronina, T. G. Oreshenko, V. S. Zaslavets, and I. V. Nazarov p. 1196  abstract