54 citations · 271 across the 16 of their papers we have counts for
18 papers
Varying Entropy Degrees of Freedom Effects in Low-Scale Leptogenesis
Dimitrios Karamitros, Thomas McKelvey, Apostolos Pilaftsis
We analyse in detail the effect of varying entropy degrees of freedom on low-scale leptogenesis models. As an archetypal model, we consider the Tri-Resonant Leptogensis (TRL) s…
Freeze-in baryogenesis and early matter domination
Ioannis Dalianis, Andreas Goudelis, Dimitrios Karamitros +2
The freeze-in mechanism has been shown to allow the simultaneous generation of cosmic dark matter and a viable matter-antimatter asymmetry in the universe. When the underlying inte…
NSC++: Non-Standard Cosmologies in C++
Dimitrios Karamitros
We introduce NSC++, a header-only C++ library that simulates the evolution of the plasma and a decaying fluid in the early Universe. NSC++ can be used in C++ programs or called dir…
Quantum Coherence of Critical Unstable Two-Level Systems
Dimitrios Karamitros, Thomas McKelvey, Apostolos Pilaftsis
We study in detail the dynamics of unstable two-level quantum systems by adopting the Bloch-sphere formalism of qubits. By employing the Bloch-vector representation for such unstab…
Towards a Localised S-Matrix Theory
Dimitrios Karamitros, Apostolos Pilaftsis
We formulate an S-matrix theory in which localisation effects of the particle interactions involved in a scattering process are consistently taken into account. In the limit of an…
Tri-Resonant Leptogenesis in a Seesaw Extension of the Standard Model
P. Candia da Silva, D. Karamitros, T. McKelvey +1
We study a class of leptogenesis models where the light neutrinos acquire their observed small masses by a symmetry-motivated construction. This class of models may naturally inclu…