Why does Canelli focus on early universe quantum fluctuations?
The early universe represents a regime where quantum gravitational effects are expected to be dominant. Understanding quantum fluctuations during this epoch is crucial for several reasons. These fluctuations are thought to be the seeds for the large-scale structures we see today, like galaxies. Moreover, studying them from a field theory perspective allows us to probe the fundamental nature of spacetime and gravity at energy scales far beyond what we can access experimentally, offering insights into the universe's initial conditions and its subsequent evolution.
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