Periodic Coherence Monitor

Every element now uses its audited frequency record: NIST neutral-atom spectral centroids where documented, observed dominant transitions where centroid support is limited, and clearly identified ionization-threshold anchors for the least accessible heavy elements. These evidence inputs drive every tile, chart, tooltip, isotope corridor, and export; the downstream MEFI dynamics remain exploratory model outputs.

Exact response core used in every nodeF_MEFI(r,t) = k_r/r² − k_c/[r²(1+r)] + ΔQ·f_UFR(t)

Find element

Excitation

UFR coupling

Response memory

Tile metric

Complete periodic structure18 groups · 7 periods · lanthanides · actinides · 118 elements

Element frequency evidence

Select an element —

Frequency role

Open documented source

Nested isotope candidate laboratory

Select an elementProvisional MEFI assignment

Isotope candidates

Candidate-center spectrum

calculated shift above element center · click a label at left

Radial response balancefour simultaneous dimensions

Shape reveals balance; collapse toward one axis exposes a dominant modeled term.

Harmonic transfer spectrumdriver vs MEFI output power

Compares retained fundamental energy and higher-order response structure.

Controlled driver and complete-core responsetime trace · live phase cursor

Purple is the controlled excitation; green is the normalized full-core response. The moving cursor drives the live inspector.

Cycle-fold phase coherencecycle rows · peak-phase trail · correlation

Green cells are positive response, red cells negative response, and the white path tracks peak phase from cycle to cycle.

Group × period response surfaceselected metric across periodic structure

Preserves periodic position while exposing the active modeled metric as a continuous surface.

Pinned-node phase portraitloop area exposes memory

Pin up to four nodes. Wider loops indicate greater modeled response memory or phase separation.

Interpretation boundary: displayed element centers and support limits are documented evidence inputs, with their frequency role and tier shown explicitly. A threshold anchor is not an optical centroid, and a method-benchmark band is not a measured uncertainty. MEFI isotope centers, nested occupations, stability bandwidth, ΔQ drift, UFR lock, friction, coherence, and generated traces are deterministic exploratory outputs. Isotope-to-state assignments remain provisional until isotope-specific MEFI observations distinguish them.