Joint HET-DARK-DISCOVERY Seminar

Federico Urban (University of British Columbia)


The QCD nature of Dark Energy, signatures and applications


Abstract:


The origin of the observed dark energy could be explained entirely within the standard model, with no new fields required. I will review the ideas underlying the appearance of the Veneziano ghost of low-energy QCD and show how nontrivial spacetimes (compact topologies and time-dependent background) give rise to interesting new effects such as Casimir energies and gravitational production of unphysical states. I will then discuss the cosmological applications of such effects (dark energy, generation of primordial magnetic fields).

Details

Date: Thursday, 14/1/10

Time: 14:15

Place: Auditorium D, Blegdamsvej 17, 2100, Copenhagen