Delta Institute for Theoretical Physics

The super Virasoro minimal string from 3d supergravity

The super Virasoro minimal string is defined by coupling spacelike and timelike super Liouville theories on the worldsheet. There are four different theories 0A ^± ± and 0B ^± ± depending on discrete choices on the worldsheet. We show that these theories arise naturally from quan...

Particle Creation in a Cosmological Background in Analogy to the Schwinger Effect

Abstract We consider a gravitational analogue of the Schwinger effect in a cosmological context. While the Schwinger effect is usually attributed to a static electric background, its derivation is actually based on a switching on/off of the electric field in the infinite past/fut...