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In this paper, we present compelling evidence suggesting a statisticalviolation of parity symmetry (a discrete symmetry that is separate fromisotropy) in the Cosmic Microwave Background (CMB) map, measured throughtwo-point temperature correlations. This parity asymmetric CMB challenges ourunderstanding of the quantum physics of the early Universe rather than LCDM($\Lambda$ Cold-Dark-Matter). We commence by conducting a comprehensiveanalysis of the Planck CMB, focusing on the distribution of power inlow-multipoles and temperature anticorrelations at parity conjugate points inposition space. We find tension with the near scale-invariant power-law powerspectrum of Standard Inflation (SI), with p-values of the order$\mathcal{O}\left( 10^{-4}-10^{-3} \right)$. Subsequently, we explore therecently proposed direct-sum inflation (DSI), where a quantum fluctuationarises as a direct-sum of two components evolving forward and backward in timeat parity conjugate points in physical space. We found that DSI is consistentwith data on parity asymmetry, the absence of power at $\theta>60^{\circ}$, andpower suppression at low-even-multipoles which are major data anomalies in theSI. Furthermore, we discover that the parameters characterizing thehemispherical power asymmetry anomaly become statistically insignificant whenthe large SI quadrupole amplitude is reduced to align with the data. DSIexplains this low quadrupole with a p-value of $3.5\%$, 39 times higher thanSI. Combining statistics from parameters measuring parity and low-$\ell$angular power spectrum, we find that DSI is 50-650 times more probable than SI.In summary, our investigation suggests that CMB temperature fluctuationsexhibit homogeneity and isotropy but parity-violating consistent withpredictions of DSI. This observation provides tantalizing evidence for thequantum mechanical nature of gravity.

On the origins of CMB anomalies and testing a new theory of inflationary quantum fluctuations