391 citations · 2.6k across the 85 of their papers we have counts for
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Optical cavity resonator in an expanding universe
Sergei Kopeikin
We study evolution of frequency of a standing electromagnetic (EM) wave in a resonant optical cavity placed to the expanding manifold described by the Robertson-Walker metric. One…
Towards exact relativistic theory of Earth's geoid undulation
Sergei Kopeikin, Elena Mazurova, Alexander Karpik
The present paper extends the Newtonian concept of the geoid in classic geodesy towards the realm of general relativity by utilizing the covariant geometric methods of the perturba…
Dynamic Field Theory and Equations of Motion in Cosmology
Sergei M. Kopeikin, Alexander N. Petrov
We discuss a field-theoretical approach based on variational principle to derive the field and hydrodynamic equations of motion of baryonic matter governed by cosmological perturba…
Local gravitational physics of the Hubble expansion
Sergei Kopeikin
We study physical consequences of the Hubble expansion of FLRW manifold on measurement of space, time and light propagation in the local inertial frame. We analyse the solar system…