Speaker: Ravishankar Ramanathan (Hong Kong)
Abstract
Abstract: It is well known that classical tools do not allow the extraction of randomness from a single random source. On the other hand, quantum theory allows for such extraction even within the device-independent framework. While practically feasible protocols have been proposed for randomness sources that possess a specific Santha-Vazirani structure, it has remained an open problem to derive a finite-device protocol for extraction from an arbitrary min-entropy source. In this talk, we will present and outline the security of such a device-independent protocol with the following features: (1) robust amplification of an arbitrary min-entropy source, (2) usage of a device with a constant number of components, (3) security in the presence of a quantum adversary.