From the ediorial board

“For 108 years we have been highlighting advances in physics. To the readers of the journal "Uspekhi Fizicheskikh Nauk" ("Physics-Uspekhi")” Phys. Usp. 69 1–1 (2026)

Reviews of topical problems

G.M. Gusev, Z.D. Kvon, A.D. Levin, E.B. Olshanetsky, N.N. Mikhailov “Thermopower in HgTe-based topological insulators and two-dimensional semimetals” Phys. Usp. 69 2–24 (2026)

A.P. Menushenkov, M.Yu. Kagan “Real-space pairing and formation of Fermi—Bose mixture in BaBiO₃-based family of superconducting oxides” Phys. Usp. 69 25–41 (2026)

Instruments and methods of investigation

A.B. Tolstoguzov, P.Yu. Babenko, A.N. Zinoviev “Surface analysis by low-energy ion scattering spectroscopy” Phys. Usp. 69 42–73 (2026)

From the history of physics. The 100th anniversary of quantum mechanics

K. Barley, A. Ruffing, S.K. Suslov “Old quantum mechanics by Bohr and Sommerfeld from modern perspective” Phys. Usp. 69 74–93 (2026)

S.V. Petrov “Uniqueness of spin 1/2” Phys. Usp. 69 94–98 (2026)

Personalia

A.V. Butenko, D.I. Kazakov, V.D. Kekelidze, V.A. Lebedev, P.V. Logachev, V.A. Matveev, Yu.T. Oganessian, V.V. Parkhomchuk, A.N. Skrinsky, E.M. Syresin, G.V. Trubnikov, B.Yu. Sharkov “Igor' Nikolaevich Meshkov (on his 90th birthday)” Phys. Usp. 69 99–101 (2026)

A.E. Bondar’, N.A. Vinokurov, N.S. Dikansky, G.N. Kulipanov, E.B. Levichev, P.V. Logachev, I.B. Logashenko, I.N. Meshkov, V.V. Parkhomchuk, Yu.A. Tikhonov, V.S. Fadin, Yu.M. Shatunov “Aleksandr Nikolaevich Skrinsky (on his 90th birthday)” Phys. Usp. 69 102–104 (2026)

Scientific news

Yu.N. Eroshenko “Physics news on the Internet: January 2026” Phys. Usp. 69 105–106 (2026)

Reviews of topical problems

A.V. Bagulya, V.M. Grishin, V.N. Ivanchenko “Integral hadron—nuclear cross-sections” Phys. Usp. 69 (2) (2026)

A.F. Barabanov, V.E. Valiulin, A.V. Mikheyenkov, P.S. Savchenkov “Spherically symmetric approaches in the low-dimensional magnetism theory” Phys. Usp. 69 (2) (2026)

S.I. Sadovnikov, A.I. Gusev “Anisotropy of elasticity of strongly nonstoichiometric disordered cubic carbides MC_y (M = Ti, Zr, Hf, Nb, Ta) and monoxides MO_y (M = Ti, V, Nb)” Phys. Usp. 69 (2) (2026)

Physics of our days

A.A. Ostapchuk “Slow slip on tectonic faults” Phys. Usp. 69 (2) (2026)

Instruments and methods of investigation

A.K. Kaveev, G.I. Kropotov “Physical principles of filtration and the design of terahertz radiation filters” Phys. Usp. 69 (2) (2026)

Methodological notes

A.V. Belinsky, I.I. Dzhadan “Nonlocality and nonseparability of quantum and relativistic systems” Phys. Usp. 69 (2) (2026)

B.I. Sturman, E.V. Podivilov “On characteristic times for kinetics of scattering” Phys. Usp. 69 (2) (2026)

Personalia

N.S. Averkiev, P.I. Arseev, M.M. Glazov, A.G. Zabrodskii, S.V. Ivanov, V.V. Kveder, Z.D. Kvon, V.M. Pudalov, M.V. Sadovskii, O.V. Rudenko, S.A. Tarasenko, D.R. Khokhlov “Eugeniyus Levovich Ivchenko (on his 80th birthday)” Phys. Usp. 69 (2) (2026)

Scientific news

Yu.N. Eroshenko “Physics news on the Internet: February 2026” Phys. Usp. 69 (2) (2026)