In this Letter we define generalizations of boson normal ordering. These are based on the number of contractions whose vertices are next to each other in the linear representation of the boson operator function. Our main motivation is to shed further light onto the combinatorics arising from algebraic and Fock space properties of boson operators.
|Number of pages||7|
|Journal||Physics Letters, Section A: General, Atomic and Solid State Physics|
|State||Published - 30 Apr 2007|
Bibliographical noteFunding Information:
We would like to thank Jacob Katriel for his encouragement and interest in this work, Ed Corrigan and Chris Fewster for helpful discussion. S.S. is supported by EPSRC of the UK. The comment of the anonymous referees helped to greatly improve the Letter.
ASJC Scopus subject areas
- Physics and Astronomy (all)