Primordial Gravitational Waves in Running Vacuum Cosmologies

D. A. Tamayo, J. A. S. Lima, M. E. S. Alves +1

We investigate the cosmological production of gravitational waves in a nonsingular flat cosmology powered by a "running vacuum" energy density described by ${\rho }_{\Lambda }\equiv {\rho }_{\Lambda }(H)$, a phe…