2025/02/15 by Roychowdhury, Dibakar · 5 citations
#FOS: Physical sciences #General Relativity and Quantum Cosmology (gr-qc) #High Energy Physics - Theory (hep-th)
paper · doi:10.48550/arxiv.2502.10797
We present a holographic set up that computes timelike Entanglement Entropy (tEE) in (0+1) d QFTs preserving some amount of SUSY. The first example we consider is that of N=2 matrix models with massive deformations. These are dual to non-Abelian T-dual of AdS5 × S5 that asymptotes to smeared D0 branes. The second example, that we consider is of N=4 superconformal quantum mechanical quivers in ( 0+1 )d that are dual to a class of type IIB backgrounds with an AdS2 factor. In both of these examples, tEE reveals a remarkable similarity with holographic c function pertaining to a RG flow. We further compute the complexity in these models, which also reveals an identical behaviour indicating the fact that tEE is a measure of number of degrees of freedom for these ( 0+1 )d SQFTs in a RG flow from UV to deep IR.