566 citations
- Sorbonne UniversitéFR4 papers
- Polish Academy of LearningPL3 papers
- Polish Academy of SciencesPL3 papers
- Université de Rouen NormandieFR3 papers
- Michigan State UniversityUS2 papers
- Universität HamburgDE2 papers
- Université Paris 8FR2 papers
- Université Paris CitéFR2 papers
- Australian National UniversityAU1 paper
- Bielefeld UniversityDE1 paper
- British Antarctic SurveyGB1 paper
- Centre de Recherche Astrophysique de LyonFR1 paper
Showing 2004 · quant-phShow all
3 papers · 2 filters
quant-ph2004★ 6 cited
A product formula and combinatorial field theory
A. Horzela, P. Blasiak, G. H. E. Duchamp +2
We treat the problem of normally ordering expressions involving the standard boson operators a, a* where [a,a*]=1. We show that a simple product formula for formal power series - e…
quant-ph2004★ 7 cited
Partition functions and graphs: A combinatorial approach
Allan I. Solomon, Pawel Blasiak, Gerard Duchamp +2
Although symmetry methods and analysis are a necessary ingredient in every physicist's toolkit, rather less use has been made of combinatorial methods. One exception is in the real…
quant-ph2004
One-parameter groups and combinatorial physics
Gerard Duchamp, Karol A. Penson, Allan I. Solomon +2
In this communication, we consider the normal ordering of sums of elements of the form (a*^r a a*^s), where a* and a are boson creation and annihilation operators. We discuss the i…