Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2000-06-29
Phys.Rev.D63:045003,2001
Physics
High Energy Physics
High Energy Physics - Theory
6 pages, A new section is added with other comments and references. To appear in PRD
Scientific paper
10.1103/PhysRevD.63.045003
Space-time non-commutative theories are non-local in time. We develop the Hamiltonian formalism for non-local field theories in d space-time dimensions by considering auxiliary d+1 dimensional field theories which are local with respect to the evolution time. The Hamiltonian path integral quantization is considered and the Feynman rules in the Lagrangian formalism are derived. The case of non-commutative \phi^3 theory is considered as an example.
Gomis Joaquim
Kamimura Kiyoshi
Llosa Josep
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