Advances in Theoretical and Mathematical Physics

Volume 18 (2014)

Number 6

Precanonical quantization and the Schrödinger wave functional revisited

Pages: 1249 – 1265



Igor V. Kanatchikov (National Quantum Information Centre in Gdańsk (KCIK), Sopot, Poland)


We address the issue of the relation between the canonical functional Schrödinger representation in quantum field theory and the approach of precanonical field quantization proposed by the author, which requires neither a distinguished time variable nor infinite-dimensional spaces of field configurations. We argue that the standard functional derivative Schrödinger equation can be derived from the precanonical Dirac-like covariant generalization of the Schrödinger equation under the formal limiting transition $\gamma^0 \varkappa \to \delta(0)$, where the constant $\varkappa$ naturally appears within precanonical quantization as the inverse of a small “elementary volume” of space. We obtain a formal explicit expression of the Schrödinger wave functional as a continuous product of the Dirac algebra valued precanonical wave functions, which are defined on the finite-dimensional covariant configuration space of the field variables and space-time variables.

Full Text (PDF format)