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SUMMARY:Towards AdS Distances in String Theory
DTSTART:20231113T130000Z
DTEND:20231113T140000Z
DTSTAMP:20240919T110300Z
UID:indico-event-38449@agenda.infn.it
DESCRIPTION:Speakers: NicolĂ˛ Petri (Ben Gurion University (Israel))\n\nRe
cent developments in high-energy physics have brought to light the need to
formulate a consistent notion of distance between gravitational vacua. Sp
ecifically\, within the Swampland program\, the AdS Distance conjecture pr
oposes to assign such a notion for AdS vacua in quantum gravity. Beginning
with very basic AdS vacua in string theory\, I will expand upon this conc
ept\, providing a more formal framework for it.Firstly\, I will introduce
a precise definition of a metric for the space of conformal variations of
AdS. This metric\, however\, turns out to be negative\, resulting in an il
l-defined distance\, a property related to the famous conformal factor pro
blem in quantum gravity. Nonetheless\, in string theory\, variations in th
e AdS conformal factor are accompanied by variations in the internal dimen
sions and background flux. Interestingly\, the inclusion of these variatio
ns can change the sign of the metric over the space of AdS vacua variation
s. I will propose a consistent procedure for deriving the distance between
AdS vacua by introducing the notion of an "action metric\," which account
s for all of these variations simultaneously. I will test this procedure b
y focusing on AdS4 and AdS7 Freund-Rubin vacua in M-theory and demonstrate
that it yields a well-defined and positive distance.\n\nhttps://agenda.in
fn.it/event/38449/
LOCATION:AULA GRASSANO (https://infn-it.zoom.us/j/82247215673?pwd=em1GRklE
YngwMGVBbVVBb2VoL1pvdz09)
URL:https://agenda.infn.it/event/38449/
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