par Compère, Geoffrey 
;Fiorucci, Adrien ;Ruzziconi, Romain
Référence The Journal of high energy physics, 2018, 11, 200
Publication Publié, 2018-11-01
;Fiorucci, Adrien ;Ruzziconi, Romain Référence The Journal of high energy physics, 2018, 11, 200
Publication Publié, 2018-11-01
Article révisé par les pairs
| Résumé : | We derive a closed-form expression of the orbit of Minkowski spacetime under arbitrary Diff(S2) super-Lorentz transformations and supertranslations. Such vacua are labelled by the superboost, superrotation and supertranslation fields. Impulsive transitions among vacua are related to the refraction memory effect and the displacement memory effect. A phase space is defined whose asymptotic symmetry group consists of arbitrary Diff(S2) super-Lorentz transformations and supertranslations. It requires a renormalization of the symplectic structure. We show that our final surface charge expressions are consistent with the leading and subleading soft graviton theorems. We contrast the leading BMS triangle structure to the mixed overleading/subleading BMS square structure. |
