Constraining non-commutative space-time from GW150914
Event details
| Date | 26.09.2016 |
| Hour | 14:00 › 15:00 |
| Speaker | Cyril Lagger |
| Location | |
| Category | Conferences - Seminars |
The gravitational wave signal GW150914, recently 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 that the leading non-commutative correction to the phase of the gravitational 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 constrained to be at the order of the Planck scale. This is the most stringent bound on non-commutative space-time, exceeding the previous constraints from particle physics processes by 15 orders of magnitude.
Practical information
- General public
- Free