Macroscopic traversable wormholes: minimum requirements

TL;DR

This paper explores the theoretical conditions under which macroscopic traversable wormholes could exist, focusing on zero tidal forces to overcome quantum restrictions and considering their emergent nature for feasibility.

Contribution

It proposes that zero tidal forces are sufficient for traversable wormholes to bypass quantum restrictions and discusses conditions and emergent perspectives that support their potential existence.

Findings

Zero tidal forces can theoretically allow wormholes to be traversable.

Additional conditions are identified to maintain low radial tidal forces.

Viewing wormholes as emergent phenomena increases their plausibility.

Abstract

While wormholes are just as good a prediction of Einstein's theory as black holes, they are subject to severe restrictions from quantum field theory. To allow for the possibility of interstellar travel, a macroscopic wormhole would need to maintain sufficiently low radial tidal forces. It is proposed in this paper that the assumption of zero tidal forces, i.e., the limiting case, is sufficient for overcoming the restrictions from quantum field theory. The feasibility of this approach is subsequently discussed by (a) introducing the additional conditions needed to ensure that the radial tidal forces can indeed be sufficiently low and (b) by viewing traversable wormholes as emergent phenomena, thereby increasing the likelihood of their existence.