Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2009-08-17
Found.Phys.41:820-842,2011
Physics
High Energy Physics
High Energy Physics - Theory
Latex 23 pages, sent to "Foundations of Physics"
Scientific paper
10.1007/s10701-010-9525-0
Quantum theory of Lorentz invariant local scalar fields without restrictions on 4-momentum spectrum is considered. The mass spectrum may be both discrete and continues and the square of mass as well as the energy may be positive or negative. Such fields can exist as part of a hidden matter in the Universe if they interact with ordinary fields very weakly. Generalization of Kallen-Lehmann representation for propagators of these fields is found. The considered generalized fields may violate CPT- invariance. Restrictions on mass-spectrum of CPT-violating fields are found. Local fields that annihilate vacuum state and violate CPT- invariance are constructed in this scope. Correct local relativistic generalization of Lindblad equation for density matrix is written for such fields. This generalization is particulary needed to describe the evolution of quantum system and measurement process in a unique way. Difficulties arising when the field annihilating the vacuum interacts with ordinary fields are discussed.
Franke V. A.
Kurkov M. A.
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