Many Worlds

Branch probability split 50 / 50

Decoherence rate 1.0x

Branch count

Measurements

Entanglement entropy

0.00

How it works

Each translucent sheet is a "world" — a branch of the universal wavefunction. When a measurement particle crosses the glowing plane, decoherence splits that branch in two, weighted by the Born-rule probability you set. Every existing branch keeps evolving; nothing is ever deleted, only decreasingly overlapping.

|Ψ⟩ = Σᵢ cᵢ |branch_i⟩,  Σ|cᵢ|² = 1
after measurement: |Ψ⟩ → √p|branch_A⟩ + √(1−p)|branch_B⟩
S = −Σ pᵢ·log₂(pᵢ)   (entanglement/branch entropy)

Branch probability split — the Born-rule weighting p of the "up" outcome versus (1−p) for "down"; unequal splits make one branch visibly thicker/brighter.
Decoherence rate — how fast the measurement particle travels down the tree, i.e. how quickly branches separate and stop interfering.
Trigger measurement — sends a new measurement event down every currently-open branch, doubling the branch count each time.

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