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Issue 12, 2025
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PACS numbers

06.30.Ft Time and frequency
  1. V.V. Lider “Pumping and X-ray probing technique” Phys. Usp. 68 905–922 (2025)
    06.30.Ft, 07.85.Qe, 42.55.−f, 61.05.C−, 61.05.cj (all)
  2. K.Yu. Khabarova, N.N. Kolachevsky “Proton charge radius” Phys. Usp. 64 1038–1048 (2021)
    06.20.Jr, 06.30.Ft, 12.20.Fv, 32.10.Fn, 32.30.Jc, 42.62.Fi (all)
  3. K.Yu. Khabarova, E.S. Kalganova, N.N. Kolachevsky “Accurate frequency and time dissemination in the optical domain” Phys. Usp. 61 203–211 (2018)
    06.20.Jr, 06.30.Ft, 12.20.Fv, 32.10.Fn, 32.30.Jc, 42.62.Fi (all)
  4. V.L. Velichansky, M.A. Gubin “Laser frequency standards at the P N Lebedev Physical Institute” Phys. Usp. 52 1153–1158 (2009)
    01.30.Bb, 06.30.Ft, 42.55.Px, 42.62.Eh (all)
  5. V.S. Davydov, V.M. Shabaev, N.N. Kolachevsky “Selected problems in hydrodynamics, quantum electrodynamics, and laser spectroscopy (Scientific session of the Physical Sciences Division of the Russian Academy of Sciences, 14 May 2008)” Phys. Usp. 51 1171–1190 (2008)
    01.10.Fv, 06.20.Jr, 06.30.Ft, 12.20.−m, 12.20.Ds, 12.20.Fv, 32.10.Fn, 32.30.Jc, 31.30.Gs, 31.30.Jv, 42.62.Fi, 43.30.+m, 43.60.+d, 92.10.Vz (all)
  6. N.N. Kolachevsky “High-precision laser spectroscopy of cold atoms and the search for the drift of the fine structure constant” Phys. Usp. 51 1180–1190 (2008)
    06.20.Jr, 06.30.Ft, 12.20.Fv, 32.10.Fn, 32.30.Jc, 42.62.Fi (all)
  7. N.N. Kolachevsky “Laboratory search for time variation in the fine structure constant” Phys. Usp. 47 1101–1118 (2004)
    06.20.Jr, 06.30.Ft (all)
  8. I.D. Novikov “Physical properties of a time machine” Sov. Phys. Usp. 32 282–283 (1989)
    06.30.Ft, 07.10.Pz, 03.30.+p (all)
  9. N.G. Basov, V.S. Letokhov “Optical frequency standards” Sov. Phys. Usp. 11 855–880 (1969)
    06.30.Ft, 06.20.fb (all)
  10. N.G. Basov, O.N. Krokhin et al “Possible investigation of relativistic effects with the aid of molecular and atomic frequency standards” Sov. Phys. Usp. 4 641–673 (1962)
    06.20.fb, 06.30.Ft, 03.30.+p, 04.20.−q (all)
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