Speaker
Description
The interface between Quantum Information and Quantum Field Theory --especially Quantum Gravity -- is emerging as a forefront area of fundamental physics. But there is some tension between the way the basic concepts are commonly understood by the two communities. In particular, are the Coulombic modes' of the gravitational field sourced by quantum matter quantum mechanical? They are not registered in the usual Hilbert spaces Hgrav (and Hph) of gravitons (and photons) that know only about theradiative modes'. Will the proposed experiments directly test the quantum nature of the radiative aspects' orCoulombic aspects'? The talk will examine such elementary yet fundamental issues by drawing on an exactly soluble, non-perturbative quantum gravity model that is especially well-suited for this purpose.
