Stochastic vacuum of quantum chromodynamics as an environment for colour particles

In this work we apply the approaches used in quantum mechanics (and also quantum optics and quantum information theory) for the description of the behaviour of quarks. We treat stochastic vacuum of quantum chromodynamics as an environment for colour particles (quarks). We show that during their interaction the information about quark colour state is lost and thus cannot be extracted, which effectively leads to the confinement of colour quarks. Quantum characteristics (von Neumann entropy, fidelity and purity) are used to describe the aforementioned process.