Combinatorial Algebra for second-quantized Quantum Theory

Details Combinatorial Algebra for second-quantized Quantum Theory Combinatorial Algebra for second-quantized Quantum Theory

2010-01-27

arxiv.org/abs/1001.4964v1

Physics

Mathematical Physics

28 pages, 6 figures

Scientific paper

We describe an algebra G of diagrams which faithfully gives a diagrammatic representation of the structures of both the Heisenberg-Weyl algebra H - the associative algebra of the creation and annihilation operators of quantum mechanics - and U(L_H), the enveloping algebra of the Heisenberg Lie algebra L_H. We show explicitly how G may be endowed with the structure of a Hopf algebra, which is also mirrored in the structure of U(L_H). While both H and U(L_H) are images of G, the algebra G has a richer structure and therefore embodies a finer combinatorial realization of the creation-annihilation system, of which it provides a concrete model.

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