BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Memento EPFL//
BEGIN:VEVENT
SUMMARY:Constraining non-commutative space-time from GW150914
DTSTART:20160926T140000
DTEND:20160926T150000
DTSTAMP:20260408T085110Z
UID:5a0734cab9b348ff5924f00695c1f6257f260af6b18c39a252a567d9
CATEGORIES:Conferences - Seminars
DESCRIPTION:Cyril Lagger\nThe gravitational wave signal GW150914\, recent
 ly detected by LIGO and Virgo collaborations\, is used to place a bound 
 on the scale of quantum fuzziness of non-commutative space-time. We show t
 hat the leading non-commutative correction to the phase of the gravitation
 al waves produced by a binary system appears at the 2nd order of the post-
 Newtonian expansion. This correction is proportional to the square of the 
 modulus of the antisymmetric tensor of non-commutativity. To comply with
  GW150914 data\, we find thatthe scale of non-commutativity is constrain
 ed to be at the order of the Planck scale. This is the most stringent bo
 und on non-commutative space-time\, exceeding the previous constraints fro
 m particle physics processes by 15 orders of magnitude.
LOCATION:cubotron 727 http://plan.epfl.ch/?zoom=20&recenter_y=5864267.5618
 5&recenter_x=731638.45199&layerNodes=fonds\,batiments\,labels\,information
 \,parkings_publics\,arrets_metro\,transports_publics&floor=7&q=bsp_727
STATUS:CONFIRMED
END:VEVENT
END:VCALENDAR