Half-wormholes in a supersymmetric SYK model

A bstract We identify half-wormhole contributions to the non averaged $$ \mathcal{N} $$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mi>N</mml:mi> </mml:math> = 1 supersymmetric SYK model in which time has been reduced to a point. As in previously studied examples, the inclusion of half-wormholes restores factorisation in the large N limit. Wormholes as well as half-wormholes break supersymmetry.