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aidoesscience › Structure g(r)
Investigating · emergence

Emergent matter · structure simulation

What phase of matter does an emergent Particle Life world form — a gas, a liquid, or a crystal?

▶ Run the simulationSee the measured result

Measured by the lab
3.7009
Known value
3.7037037
Relative error
7.60e-4

Units: dimensionless g(σ⁺) at η = 0.40 (ρσ³ = 0.7639437), Carnahan–Starling

How the lab tests it

Measure the pair-correlation function g(r) — the radial distribution function from statistical mechanics — by time-averaging a toroidal histogram of every pairwise separation over the live field, normalised so g = 1 means 'as likely as random'.

What it looks for

the g(r) shape: flat g ≈ 1 (gas), a first peak with damped oscillations (liquid, short-range order), or many sharp peaks (crystal). A first peak far above ~3 signals two-phase coexistence (dense droplets in gas), since g(r) is normalised by the global density

This simulation has a catalogued, oracle-checked result: Pair correlation g(r).