A Cubic Deformation of ABJM: The Squashed, Stretched, Warped, and Perturbed Gets Invaded

Understand

A superpotential deformation that is cubic in one of the chiral superfields of ABJM makes the latter theory flow into a new, ${\cal N}=2$ superconformal phase.

• This is holographically dual to a warped $\textrm{AdS}_4 \times_w S^7$ solution of M-theory equipped with a squashed and stretched metric on $S^7$.
• We determine the spectrum of spin-2 operators of the cubic deformation at low energies by computing the spectrum of Kaluza-Klein (KK) gravitons over the dual AdS$_4$ solution.
• We calculate, numerically, the complete graviton spectrum and, analytically, the spectrum of gravitons that belong to short multiplets.