Quantum fields and "Big Rip" expansion singularities

TL;DR

This paper investigates how quantized conformally invariant massless fields influence the evolution of cosmological models with a Big Rip singularity, finding they accelerate the expansion near the singularity.

Contribution

It demonstrates that quantized scalar, spinor, and vector fields intensify the accelerating expansion in models approaching a Big Rip singularity.

Findings

Quantized fields strengthen the Big Rip expansion

Scalar, spinor, and vector fields all contribute to acceleration

Approaching singularity, expansion rate increases due to quantum effects

Abstract

The effects of quantized conformally invariant massless fields on the evolution of cosmological models containing a ``Big Rip'' future expansion singularity are examined. Quantized scalar, spinor, and vector fields are found to strengthen the accelerating expansion of such models as they approach the expansion singularity.