Seminar: "Qubit Transport Model for Unitary Black Hole Evaporation without Firewalls" by Mr. Kento Osuga

Speaker: Mr. Osuga is currently at his last year as a Ph.D. student at University of Alberta, Canada.

Abstract. The firewall argument suggests the necessity of modifying our current understanding of QFT in order to consistently couple with gravity. It seems that locality of QFT is the most dubious requirement, hence, an remaining question is; how to incorporate non-locality into QFT without contradiction to today's observations that agree with locality? One such modification is to confine nonlocality in the gravity sector so that nonlocality of quantum gravity may not have much observable effect on experiments in laboratories. In this talk, I would start with reviewing properties of quantum entanglement and the firewall paradox. Then, I present an explicit qubit toy model of nonlocal gravity without firewalls that suggests some hints how to formulate quantum gravity. This is a joint work with Don N. Page.