Colors encode increasing energy density from red through orange and yellow to blue and purple. In the end, all the energy is concentrated in a "flux tube" connecting the quark and the antiquark (lower right). Later, as more configurations are added, the fluctuations begin to cancel (lower left).
As quantum fluctuations are allowed to propagate through the lattice, it blooms with a jumble of random noise (upper right). Initially (upper left) the configuration is "cold" and far from thermal equilibrium. The model generates many random configurations of the lattice and calculates their average in order to approximate the true state of the system. Neither the quark and antiquark nor the structure of the lattice are shown directly the colored surfaces represent contours of energy density in the quantum fields that bind together the quark and antiquark. Inside the rectilinear volume are a quark and an antiquark, immobilized within a gridlike lattice.
A simulation of quarks and quantum fields unfolds step by step in a visualization created by Massimo Di Pierro of DePaul University.
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