Retrieving "Mass Hierarchy Problem" from the archives
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Conformal Cyclic Cosmology
Linked via "Mass Hierarchy Problem"
In the standard model of Eternal Inflation (a form of self-reproducing spacetime), new universes are constantly nucleating from the quantum fluctuations within the inflating spacetime, leading to an infinitely branching multiverse. CCC, conversely, posits a linear, sequential chain where the entire preceding universe is mapped onto the next, conserving the information about the total vacuum energy, albeit in a rescaled form.
A significant theoretical hurdle is the *[Mass Hier… -
Higgs Field Condensate
Linked via "Mass Hierarchy Problem"
Observational Constraints and The "Tuning Paradox"
While the existence of the condensate is confirmed by the discovery of the Higgs boson (the quantum excitation of the field), its precise parameters—particularly $\mu^2$ and $\lambda$—present significant theoretical challenges, collectively known as the Mass Hierarchy Problem or the Vacuum Stability Tuning Paradox.
The measured value of $\mu^2$ must be tuned against quantum corrections derived from higher-energy theories (such as [gravi…