Rotation and twist regular modes for trapped ghosts

TL;DR

This paper develops a parameter-independent framework for stationary slow motion in trapped ghost wormholes, analyzing rotation and twist modes and their effects on angular velocities in different wormhole sheets.

Contribution

It introduces a novel, parameter-independent approach to stationary slow motions in trapped ghost wormholes, focusing on rotation and twist modes and their physical implications.

Findings

Rotation mode causes excess angular velocity in one wormhole sheet.

Twist modes induce asymmetry in angular velocity at the wormhole's poles.

Rotation mode's angular velocity matches that of rotating stars in the other sheet.

Abstract

A parameter-independent notion of stationary slow motion is formulated then applied to the case of stationary rotation of massless trapped ghosts. The excitations correspond to a rotation mode with angular momentum $J\neq 0$ and twist modes. It is found that the rotation mode, which has no parity, causes excess in the angular velocity of dragged distant coordinate frames in one sheet of the wormhole while in the other sheet the angular velocity of the ghosts is that of rotating stars: $2J/r^3$. As to the twist modes, which all have parity, they cause excess in the angular velocity of one of the throat's poles with respect to the other.