most citedCosmological evolution with negative energy densities

6 citations

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3 papers

physics.acc-ph2022★ 4 cited

Coherent radiation from a chain of charged particles on a circular orbit around a dielectric ball

L. Sh. Grigoryan, A. H. Mkrtchyan, S. B. Dabagov +5

We investigate the electromagnetic radiation from a chain of relativistic charged particles uniformly rotating along equatorial orbit around a dielectric ball. For weak absorption…

gr-qc2022★ 6 cited

Cosmological evolution with negative energy densities

A. A. Saharian, R. M. Avagyan, E. R. Bezerra de Mello +3

For general number of spatial dimensions we investigate the cosmological dynamics driven by a cosmological constant and by a source with barotropic equation of state. It is assumed…

quant-ph2022★ 2 cited

Photon cooling: linear vs nonlinear interactions

A. Hovhannisyan, V. Stepanyan, A. E. Allahverdyan

Linear optics imposes a relation that is more general than the second law of thermodynamics: For modes undergoing a linear evolution, the full mean occupation number (i.e. photon n…