String T-duality Cosmology Constrained By Observations Yields Upper Bound Of <0.003 For Deviations From Standard CDM Models

String T-duality Cosmology Constrained By Observations Yields Upper Bound Of <0.003 For Deviations From Standard CDM Models

Recent cosmological analysis, incorporating principles from string theory, places a tight upper limit on deviations from the standard model of cosmic expansion, suggesting that any modifications to our understanding of gravity at extremely small scales are currently undetectable with existing observations.