演講資訊

摘要：

The question of whether Hawking evaporation violates unitarity, and therefore results in the loss of information, has remained unresolved since Hawking’s seminal discovery. To date, the debates have remained mostly theoretical since it is almost impossible to settle this paradox through direct astrophysical black hole observations. Is there any hope to see the end of such a “black hole war”?  In this talk we will first review, in a very pedagogical way, the origin and the history of the black hole war.  We then point out that accelerating relativistic flying plasma mirrors can serve as analog black holes that mimic the late stage of black hole evaporation. Such an accelerating plasma mirror can be prepared by injecting an intense x-ray pulse into a nano thin film with a graded density. This can in principle be accomplished via state-of-the-art laser and nano-fabrication technologies. A conception of such an experiment is proposed and a self-consistent set of physical parameters is presented. Critical issues, such as how the black hole unitarity may be preserved, can be addressed through the entanglement between the analog Hawking radiation photons and their partner modes.