The expansion of space in the universe, as described by the theory of cosmic inflation or the current observations of the accelerated expansion, does not directly imply an expansion or recreation of the quantum field. Let's break down the concepts involved:
Expansion of space: The expansion of space refers to the phenomenon where the distances between galaxies and galaxy clusters increase over time. It is a consequence of the expansion of the universe itself, as described by general relativity. This expansion does not involve the creation or expansion of the quantum fields themselves.
Quantum fields: Quantum fields, such as the electromagnetic field, the Higgs field, or other fundamental fields, are mathematical constructs that describe the behavior of particles and their interactions. They exist throughout space and are not confined to specific regions. The quantum fields are fundamental properties of the universe and are not directly tied to the expansion of space.
While the expansion of space does affect the wavelengths of light and other particles, it does not cause the quantum fields themselves to expand or be recreated. The quantum fields are intrinsic properties of spacetime and are unaffected by the expansion of the universe. They provide the foundation for particles and their interactions, and their behavior is described by quantum field theories.
However, it is worth noting that the expansion of space can have indirect effects on the behavior of quantum fields and particles within it. As space expands, the density of particles decreases, and this can influence the properties of the quantum fields and their interactions. For example, during cosmic inflation, the rapid expansion of space can lead to the generation of fluctuations in the quantum fields, which can later evolve into the structures we observe in the universe, such as galaxies and galaxy clusters.
In summary, the expansion of space in the universe does not directly cause an expansion or recreation of the quantum fields. The quantum fields are fundamental properties of spacetime and exist throughout space, irrespective of its expansion. However, the expansion of space can have indirect effects on the behavior of quantum fields and the evolution of the universe as a whole.