MatSci-SAMCompare exact published wording and inspect when definitions, revisions, comments, and voting acts were recorded.
Each mark is one recorded act. Select a publication or revision to inspect its wording below.
Showing 6 recorded events for all 3 definitions.
Exact recorded times are retained; the axis is labelled in UTC. Event types are not combined into a weighted activity or impact score.
Definition 3, revision 1 · Sep 8, 2026, 7:09 PM UTC
Compared with Definition 2, revision 1, the source of this proposal.
Density functional theory (DFT) is a computational Added: modeling method that uRemoved: tilizAdded: ses electron Removed: charge densitiesAdded: density as the fundamental variable to approximate the ground-state electronic structure Removed: and properties of materials, bypassing the explicitAdded: of many-body systems, replacing the complex many-electron wavefunction with a functional of the density to simplify the solution of the Removed: many-body Schrödinger equation.
The magnitude runs from 0 for unchanged text to 1 for complete replacement. It measures definition wording only—not authorship, quality, or community impact.
Select two current candidates to see their exact wording differences. Removed text belongs to the first selection; added text belongs to the second.
Compared with Definition 1, revision 1, reading from the first selection to the second.
Removed: A computational method used to simulate materials (or molecules) on an atomic scale. A charge density is guessed, then updated until it is no longer changing. The results include energy and per-atom forces and can be post-processed to calculate elastic properties, band structures, and moreAdded: Density functional theory (DFT) is a computational method that utilizes electron charge densities to approximate the ground-state electronic structure and properties of materials, bypassing the explicit solution of the many-body Schrödinger equation.
The magnitude runs from 0 for unchanged text to 1 for complete replacement. It measures definition wording only—not authorship, quality, or community impact.
The same events as the plot, newest first, with exact UTC times and links to the revision each act concerned.
| Time | Definition | Event | Detail |
|---|---|---|---|
| Sep 8, 2026, 7:27 PM UTC | Definition 2 · revision 1 | Vote act | Upvote recorded |
| Sep 8, 2026, 7:09 PM UTC | Definition 3 · revision 1 | Publication | AI-assisted contribution |
| Oct 20, 2025, 8:32 PM UTC | Definition 2 · revision 1 | Comment | It would be helpful if this definition mentioned charge densities and gave some high-level insight into how solutions to the Schrödinger equation are approximated.Legacy association inferred |
| Sep 4, 2025, 3:29 PM UTC | Definition 2 · revision 1 | Vote act | Upvote recorded; imported historical actLegacy association inferred |
| Sep 4, 2025, 3:29 PM UTC | Definition 2 · revision 1 | Publication | AI-generated revision |
| Sep 4, 2025, 3:29 PM UTC | Definition 1 · revision 1 | Publication | Initial revision |