A bstract We study the Schwinger mechanism by a uniform electric field in dS 2 and AdS 2
and the curvature effect on the Schwinger effect, and further propose a thermal interpretation …

We present first results of a systematic study of the structure of the low-energy limit of the one-
loop photon–graviton amplitudes induced by massive scalars and spinors. Our main …

We calculate and discuss the one-loop corrections to the photon sector of QED interacting to
a background gravitational field. At high energies the fermion field can be taken as massless …

Recent observations of gravitational waves from binary mergers of black holes or neutron
stars and the rapid development of ultra-intense lasers lead strong field physics to a frontier …

We discuss the combined effect of magnetic fields and geometry in interacting fermionic
systems. At leading order in the heat-kernel expansion, the infrared singularity (that in flat …

In this paper we will present very recent results obtained in the ambit of quantum
electrodynamics in curved spacetime. We utilize a newly developed non-perturbative heat …

In this paper we explicitly evaluate the one-loop effective action in four dimensions for scalar
and spinor fields under the influence of a strong, covariantly constant, magnetic field in …

In this work, we exploit Jonquière's formula relating the Hurwitz zeta function to a linear
combination of polylogarithmic functions in order to evaluate the real and imaginary part of ζ …

The propagator of a scalar field on a stationary slowly varying in space gravitational
background is derived retaining only the second derivatives of the metric. The …

Kink-solitons are classical field configurations which interpolate two nearest neighbour
vacuum configurations with particle-like properties, localised in space, having finite energy …