Bulk from bi-locals in Thermo field CFT

Abstract

We study the Large N dynamics of the O(N) field theory in the Thermo field dynamics approach. The question of recovering the high temperature phase and the corresponding O(N) gauging is clarified. Through the associated bi-local representation we discuss the emergent bulk space-time and construction of (Higher spin) fields. We note the presence of ‘evanescent’ modes in this construction and also the mixing of spins at finite temperature.