The Yang Mills Double Copy leads to New AdS/CFT + Gravity Correspondences, or How the M-theory encounters Multi-fold Universes
Authors: Maes Stephane 
Published: April 2023

Following up on our recent analysis of the double copy behavior of Yang Mills scatterings, and its duality with gravity, we review the conventional AdS/CFT correspondence and ER=EPR conjectures, and, in particular, the link between entangled CFTs on one hand, and gravity on the other. Combining the dualities, we derive new types of AdS/CFT correspondences respectively for renormalized / asymptotically safe gravity derived from dual copy (AdS/CFT2CG Correspondence), and then for CFTs in the presence of such gravity (AdS/CFTYM2CG Correspondence), a priori a much better match for our real universe. We submit that such reasonings have not been encountered before, probably due to the aversion of QFTs and Superstrings to rely on particles; something that we see more as a limitations of QFTs and Superstrings approaches rather than a superiority of these approaches, as is typically argued. CFT2CG and CFTYM2CG are not necessary CFTs, i.e. they are not necessarily conformant. It is also important to note that the new correspondences do not require supersymmetry, which is consistent with such possible loss of conformance.Sources, i.e., particles, can be seen as colored/charged microscopic black holes linked by (potentially traversable) wormholes when entangled. These new dualities, and results, do not require multi-fold mechanisms for their derivation. However, the latter duality, Ads/(CFT plus double copy gravity), recovers explicitly the multi-fold mechanisms, implemented the best way that conventional physics can model them, i.e., as wormholes between entangled fields, generating gravity effects. In other words, a suitable 4D CFT spacetime with gravity is a multi-fold universe (possibly without CFTs but with asymptotic safety), where the AdS/CFT correspondence, ER=EPR and E/G conjectures are factual and one could expect to see emerge the SMG: The Standard model with gravity non-negligible at its scales. As we reviewed the conventional AdS/CFT correspondence, we revisit our suggested variations in its derivation that allows CFTs, or Yang Mills, to be generated and entangled by local brane to brane leakage. It allows for the emergence of the CFTs, and their entanglement, without depending on superstrings, and as a result without implying supersymmetry. This way, among the new AdS/CFT duality encountered, we can also discuss, and distinguish, flat 4D spacetime versus (asymptotic) de Sitter spacetime, i.e. with positive cosmological constant, and the implication on CFTs modeling super Yang Mills vs. Yang Mills; distinctions that are not really conventionally envisaged. So, we now encountered multi-folds in M-theory, as embodied in the conventional AdS/CFT correspondence conjecture, its only known approximation. Also, we clarify how the AdS/CFT correspondence conjecture relates to our real universe, beyond duality statements, including the real possibility of our universe being the boundary of an AdS(5)(+…) space, and gives hints that multi-folds may also be the source of gravity / General Relativity in AdS(5)(+…). The AdS/CFTYM2CG correspondence is what applies to our real universe as a dS/(C)QFT correspondence better suited to our real universe.All, these results are derived without multi-fold assumptions, only using the multi-fold theory as guidance. The paper also provides interesting considerations on the derivation of the AdS/CFT correspondence conjecture, leakage of Yang Mills fields, and the associated asymptotic safety of such fields, and the glimpse a new proof of asymptotic safety of (GR-based) gravity in 4D, that is detailed in an upcoming paper.We also argue that the Ultimate Unification (UU) symmetry breaking, although maybe just a progressive evolution, could involve a continuous switch from AdS/CFT2CG Correspondence to the AdS/CFTYM2CG Correspondence.