8 papers
Cosmological term, mass, and space-time symmetry
Irina Dymnikova
In the spherically symmetric case the requirements of regularity of density and pressures and finiteness of the ADM mass , together with the weak energy condition, define the fa…
Quantum Birth of a Hot Universe II. Model Parameter Estimates from CMB Temperature Fluctuations
I. G. Dymnikova, M. L. Fil'chenkov
We consider the quantum birth of a hot FRW universe from a vacuum-dominated quantum fluctuation with admixture of radiation and strings, which correspond to quantum tunnelling from…
From vacuum nonsingular black hole to variable cosmological constant
Irina Dymnikova
We outline the class of globally regular spherically symmetric solutions to the minimally coupled GR equations asymptotically de Sitter in the origin and asymptotically Schwarzschi…
Putting non Point-like Behavior of Fundamental Particles to Test
Irina Dymnikova, Alexander Sakharov, Juergen Ulbricht +1
We review the experimental limits on those hypothetical interactions where the fundamental particles could exhibit non point-like behavior. In particular we have focused on the QED…
Quasilumps from first order phase transitions
I. Dymnikova, L. Koziel, M. Khlopov +1
We investigated the bubble collisions during the first order phase transitions. Numerical results indicate that within the certain range of parameters the collision of two bubbles…
Variable cosmological term - geometry and physics
Irina Dymnikova
We describe the dynamics of a cosmological term in the spherically symmetric case by an r-dependent second rank symmetric tensor Λ_{μν} invariant under boosts in the radial directi…