2019/03/14 by Ovidiu Racorean, Racorean, Ovidiu · 1 voice · 1 citation
Physics and Astronomy · #Black Holes and Theoretical Physics #Cosmology and Gravitation Theories #Noncommutative and Quantum Gravity Theories #physics.gen-ph
paper · pdf · doi:10.48550/arxiv.1904.04012
openalex publication_date 2019/03/14 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We investigate the emergence of thermodynamic arrow of time in the context of\nAdS/CFT correspondence. We show that, on the CFT side, if the two copies of the\nfield theory are not initially correlated the entropy can only increase such\nthat a definite orientation for the thermodynamic arrow of time is imposed.\nConversely, in a high-correlation environment, the entropy can either increase\nor decrease, such that there is no opportunity for the dominance of one\ndirection of time over the other. On the gravity side, we construct the\nstructure of geometric dual by considering the notion of spacetime sidedness\nand time-orientability. Accordingly, we conjecture that the entanglement of the\nCFTs in the thermofield double state, impose the connection of the two sides of\nthe spacetime forming a one sided spacetime. In addition, disentangling the\ndegrees of freedom of the two CFTs, results in disconnecting the two sides of\nthe spacetime. In essence, the maximal entanglement between the two copies of\nCFT builds, in the geometric dual, a connection between the two sides of\nspacetime.\n