Fig. 4: Results for partially distinguishable spins. | Nature Communications

Fig. 4: Results for partially distinguishable spins.

From: Mixing indistinguishable systems leads to a quantum Gibbs paradox

Fig. 4

Plots of ΔSinfo, ΔSigno as a function of orthogonality of the spin states as determined by θ in (32). The figure is for a bosonic system with initial numbers of particles on either side of the box n = m = 15, and d = 50 cells. For comparison, the figure also displays the classical change in entropy, \(2n\,\mathrm{ln}\,(2)\). Here, the greatest change in entropy occurs when the spin states are orthogonal at θ = π.

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