Colour Information Loss due to Decoherence in Vacuum
Joint Institute for Power and Nuclear Research - Sosny of National Academy of Sciences of Belarus, Minsk, P/O box 119
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Published online: 28 October 2016
The model of stochastic vacuum of quantum chromodynamics might be used for an alternative treatment of subhadronic processes. The possibility of considering the stochastic vacuum as an environment for colour charges is discussed. It is shown that the interaction of colour particles with the stochastic vacuum leads to the decoherence process and the loss of information on the initial quantum state of the particle, which gives a new perspective regarding the confinement of quarks phenomenon.
The mentioned effect is demonstrated in cases of a single particle and a superposition of colour charges. Generalization on the multiparticle case is proposed.
Quantum characteristics (purity and von Neumann entropy) are used to analyse the process of interaction. On the base of von Neumann entropy the measure of quantum information is proposed.
© The Authors, published by EDP Sciences, 2016
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