Quantum origin of suppression for vacuum fluctuations of energy

TL;DR

This paper demonstrates that vacuum fluctuations' energy density can be exponentially suppressed by the presence of quanta in a finite volume, with potential implications for cosmology.

Contribution

It introduces a model showing exponential suppression of zero-point energy density due to quantum effects in a finite volume.

Findings

Zero-point energy density is exponentially suppressed by field quanta.

The mechanism has significant cosmological implications.

Abstract

By example of a model with a spatially global scalar field, we show that the energy density of zero-point modes is exponentially suppressed by an average number of field quanta in a finite volume with respect to the energy density in the stationary state of minimal energy. We describe cosmological implications of mechanism.