Vacuum energy predicted 10^120 times too large
Cosmological constant problem
Vacuum energy predicted 10^120 times too large
The cosmological constant problem highlights the vast gap between theoretical predictions and observed values of vacuum energy density. Quantum field theory estimates vacuum energy density to be 50 to 122 orders of magnitude greater than what is observed. This discrepancy is considered the largest in all of science and possibly the worst theoretical prediction in physics history.
Example
If quantum field theory's vacuum energy were accurate, it would imply a vacuum energy density around 10^120 times greater than what we actually observe.
Understanding this discrepancy is crucial for advancing theoretical physics and achieving a more accurate understanding of the universe's fundamental forces and structure.
Related concepts
Cosmic inflation
Cosmic inflation explains the universe's uniform temperature
Casimir effect
Casimir effect arises from quantum vacuum fluctuations
Friedmann equations
Friedmann equations govern cosmic expansion in homogeneous and isotropic models
the CMB power spectrum tells us
The CMB power spectrum reveals the universe's age, composition, and geometry
Asymptotic safety
Quarks interact more weakly at higher energies, earning the 2004 Nobel Prize
Hierarchy problem
Weak force vs. gravity: 1024 times stronger
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