Semiclassical partition function for strings dual to Wilson loops with small cusps in ABJM

JEREMIAS AGUILERA DAMIA; DIEGO H CORREA; GUILLERMO A SILVA

JOURNAL OF HIGH ENERGY PHYSICS - (Online)

Springer

Lugar: Trieste; Año: 2015 vol. 03 p. 1 - 25

1029-8479

We compute the 1-loop partition function for strings in AdS4 × CP3, whose worldsheets end along a line with small cusp angles in the boundary of AdS. We obtain these 1-loop results in terms of the vacuum energy for on-shell modes. Our results verify the proposal by Lewkowycz and Maldacena in arXiv:1312.5682 for the exact Bremsstrahlung function up to the next to leading order in the strong coupling expansion. The agreement is observed for cusps distorting either the 1/2 BPS or the 1/6 BPS Wilson line.