DOI: 10.5281/zenodo.17566870
title: Rotation Field of the Cosmic Microwave Background — Prediction & Experiment Overlays (v1.7) Part of the "22 Blue — The Heartbeat of the Universe" research archive

description: Summary 

 

Version v1.7 converts the validated α(n̂) structure from previous releases(dipole + traceless quadrupole + Δℓ harmonic periodicity)into explicit, testable predictions for future CMB polarization experiments.

No α reconstruction is performed in this version.No calibration changes, no new null simulations, and no recomputation from Q/U maps.

The α(n̂) map and polarization mask remain locked and SHA-256 tracked.

 DELIVERABLES (v1.7)

• Predicted α(n̂) sky map (HEALPix FITS, NSIDE=512)• Predicted EB(ℓ) spectrum using the small-angle birefringence relation:      EB ≈ 2 α(ℓ) · EE(ℓ)• Two-panel overlay figure showing:      – predicted α(n̂) dipole + quadrupole + harmonic structure      – predicted EB(ℓ) curve with schematic reach bands for            LiteBIRD, Simons Observatory, and CMB-S4• Manifest with SHA-256 for every file (reproducibility guarantee)• Full run folder + timestamped deliverables ZIP      (never overwrites previous versions)

 WHAT IS LOCKED (from v1.5–v1.6)

• α(n̂) map (alpha_lowL_combined_v141.fits)• polarization mask (f_sky ≈ 0.467, apodized)• dipole + traceless quadrupole parameters (v1.5)• Δℓ harmonic periodicity parameters (v1.5)• rotation amplitude conversion / physical units (v1.6)

All inputs remain immutable.All outputs are written to a new timestamped directory with SHA-256 tracking.

PURPOSE OF v1.7 

Make the cosmic birefringence signal falsifiable by future data.

v1.7 extends the result into a forward prediction:if future experiments observe α(n̂) and EB(ℓ) consistent with this model,the structure persists; if not, the model is ruled out.

 CONSERVATIVE CLAIMv1.7 does not change the detection.

It translates it into a prediction that can be confirmed — or falsified —by LiteBIRD, Simons Observatory, and CMB-S4.

-------------------------------------------------

 

VERSION HISTORY (22 Blue dataset series)

Separate publication — Sep 20, 2025• Evidence for Harmonic Phase Alignments in Planck 2018 CMB Polarization Data (Δℓ ≈ 320)

v1.0 — Oct 10, 2025• First quantitative detection of scale-dependent, anisotropic cosmic birefringence  (8.5σ isotropic + 4–5σ directional)

v1.1 — Oct 20, 2025• Adds full statistical validation (TB/EB diagnostics, covariance)

v1.2 — Oct 21, 2025• Two-harmonic extension (Δℓ ≈ 180 and 360)

v1.3 — Oct 28, 2025• Completes robustness tests (calibration, simulation, injection/recovery)

Harvard Dataverse Mirror — Oct 29, 2025• DOI: 10.7910/DVN/PTDG20

v1.4 — Nov 1, 2025• MASTER-calibrated rotation field α(ℓ); low-ℓ transfer validated

v1.41 — Nov 1, 2025• Extended calibration (SMICA/NILC, half-mission splits)

v1.42 — Nov 7, 2025• Empirical joint significance (parity + harmonics)  165,000 null realizations; add-one p ≈ 6.06×10⁻⁶ (≈4.38σ)

v1.43 — Nov 8, 2025• Calibration-invariant parity result  MASTER coupling reproduces parity to ≤ 0.26%; null exceedances 0 / 165,000

v1.44 — Nov 8, 2025• Axis + frequency + half-mission validation using the same locked α(n̂)

v1.5 — Nov 9, 2025• Multipole model selection using the same locked α(n̂)  Dipole-only rejected (ΔAIC ≈ +2.16×10⁵); Δℓ ≈ 454.7 (CI: 433–455)

v1.6 — Nov 9, 2025• Phenomenology and physical interpretation  Dipole + quadrupole removed; no further organized multipole structure  Harmonic periodicity imported into predictive α(ℓ)  Rotation amplitude converted to deg / arcmin / arcsec / rad

v1.7 — Nov 9, 2025 (this release)• Forward prediction and experiment overlays  Converts the validated α(n̂) structure into explicit, falsifiable predictions  for LiteBIRD / Simons Observatory / CMB-S4.

------------------------------------------------- Part of the “22 Blue — The Heartbeat of the Universe” dataset series.Twitter/X: @Project22Blue