742 citations · 868 across the 23 of their papers we have counts for
24 papers
Resolution of the cosmological constant problem by unimodular gravity and signature reversal symmetry
Recai Erdem
The (old) cosmological constant problem consists of two different problems. The first is the huge discrepancy between the value of the cosmological constant deduced from observatio…
Gravitational particle production, the cosmological tensions and fast radio bursts
Recai Erdem
In [26] it had been found that gravitational particle production (to be more specific, gravitational vacuum polarization) results in an effective increase in the directly measured…
Gravitational particle production and the Hubble tension
Recai Erdem
The effect of gravitational particle production of scalar particles on the total effective cosmic energy density (in the era after photon decoupling till the present) is considered…
Dynamic behavior of the antiferromagnetically coupled bilayer Ising model
C. Ekiz, R. Erdem, D. Semet
Using the path probability and lowest approximation of cluster variation method, we study the dynamic and equilibrium properties of a bilayer magnetic system, consisting of two fer…
EuCAPT White Paper: Opportunities and Challenges for Theoretical Astroparticle Physics in the Next Decade
R. Alves Batista, M. A. Amin, G. Barenboim +134
Astroparticle physics is undergoing a profound transformation, due to a series of extraordinary new results, such as the discovery of high-energy cosmic neutrinos with IceCube, the…
Curved space and particle physics effects on the formation of Bose-Einstein condensation around a Reissner-Nordström black hole
Recai Erdem, Betül Demirkaya, Kemal Gültekin
We consider two scalar fields interacting through a term in the presence of a Reissner-Nordstrom black hole. Initially, only particles are present. We find that the…