Fluctuations of the gravitational constant in the inflationary Brans-Dicke cosmology
Fluctuations of the gravitational constant in the inflationary Brans-Dicke cosmology
According to the Brans-Dicke theory, the value of the gravitational constant G which we measure at present is determined by the value of the Brans-Dicke scalar field \ensuremath{\varphi} at the end of inflation. However, because of quantum fluctuations of the scalar fields produced during inflation, the gravitational constant G(\ensuremath{\varphi}) may …