No "big trips" for the universe
Valerio Faraoni (Bishop's University)
TL;DR
This paper critically examines claims about the universe undergoing a 'big trip' via wormhole tunneling due to phantom energy and demonstrates that these claims are inconsistent with Einstein's equations.
Contribution
It refutes previous claims of a 'big trip' in phantom energy-dominated universes, clarifying misconceptions and emphasizing the importance of Einstein's equations.
Findings
Claims of the 'big trip' are unfounded
The 'big trip' scenario contradicts Einstein's equations
Wormhole growth due to phantom energy is not supported by the analysis
Abstract
It has been claimed in several papers that a phantom energy-dominated universe can undergo a ``big trip'', i.e., tunneling through a wormhole that grows faster than the cosmic substratum due to the accretion of phantom energy, and will reappear on the other mouth of the wormhole. We show that such claims are unfounded and contradict the Einstein equations.
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