On the Hopf algebraic origin of Wick normal ordering
Jul, 2000Citations per year
Abstract:
A combinatorial formula of G.-C. Rota and J.A. Stein is taken to perform Wick re-ordering in quantum field theory. Wick's theorem becomes a Hopf algebraic identity called Cliffordization. The combinatorial method relying on Hopf algebras is highly efficient in computations and yields closed algebraic expressions. AMS Subject Classifications 2000: 81R50; 16W30Note:
- 14 pages, 3 Figures
- axiomatic field theory
- Hamiltonian formalism
- operator: algebra
- algebra: Hopf
- algebra: Clifford
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