Quantum triviality

It is well-known, that the physical vacuum is not the empty space due to permanent creation and annihilation of virtual particles. As an usual continuous media, the physical vacuum possesses the ability of charge screening, which makes the effective charge being a function of the length (or momentum) scale. Quantum triviality is referred to a possible situation in quantum field theories, when the effective charge tends to zero in the limit of large length scales. In this case, the theory is said to be "trivial" or non-interacting.

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