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SUMMARY:An Entangled SO(3) Cosmic String Network
DTSTART:20261023T130000Z
DTEND:20261023T140000Z
DTSTAMP:20261112T132500Z
UID:indico-event-1594@conference.ippp.dur.ac.uk
DESCRIPTION:Speakers: Cameron Moffett-Smith (UC Irvine)\n\nDiscrete non-Ab
 elian symmetries such as A4 are a popular tool for explaining the pattern 
 of neutrino masses and the large lepton mixing angles. If such a symmetry 
 is the remnant of a spontaneously broken continuous group\, the breaking c
 an leave behind a network of cosmic strings. In this talk I will discuss t
 he breaking SO(3) to A4\, where the strings are classified by the binary t
 etrahedral group T’. String collisions are richer than in the familiar A
 belian case: strings can reconnect\, pass through each other\, or become j
 oined by a bridge whose flux may belong to an entirely different string ne
 twork. I will show how the probabilities of these outcomes follow directly
  from the group structure\, rather than being put in by hand as free param
 eters\, as is usual in network models. I will talk about the string evolut
 ion describing the energy density and correlation length and compare it to
  U(1) strings of the same tension. I will then show that the resulting gra
 vitational wave background of the cosmic string network is stronger than t
 he U(1) string case.\n\nhttps://conference.ippp.dur.ac.uk/event/1594/
URL:https://conference.ippp.dur.ac.uk/event/1594/
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