Geodesic
Combinatorial Models of Creation-Annihilation
Séminaire lotharingien de combinatoire, Tome 65 (2011-2012)
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Quantum physics has revealed many interesting formal properties associated with the algebra of two operators, A and B, satisfying the partial commutation relation AB-BA=1. This study surveys the relationships between classical combinatorial structures and the reduction to normal form of operator polynomials in such an algebra. The connection is achieved through suitable labelled graphs, or "diagrams", that are composed of elementary "gates". In this way, many normal form evaluations can be systematically obtained, thanks to models that involve set partitions, permutations, increasing trees, as well as weighted lattice paths. Extensions to q-analogues, multivariate frameworks, and urn models are also briefly discussed. 

@article{SLC_2011-2012_65_a2,
     author = {Pawel Blasiak and Philippe Flajolet},
     title = {Combinatorial {Models} of {Creation-Annihilation}},
     journal = {S\'eminaire lotharingien de combinatoire},
     year = {2011-2012},
     volume = {65},
     url = {http://geodesic.mathdoc.fr/item/SLC_2011-2012_65_a2/}
}
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TI  - Combinatorial Models of Creation-Annihilation
JO  - Séminaire lotharingien de combinatoire
PY  - 2011-2012
VL  - 65
UR  - http://geodesic.mathdoc.fr/item/SLC_2011-2012_65_a2/
ID  - SLC_2011-2012_65_a2
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%A Philippe Flajolet
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%J Séminaire lotharingien de combinatoire
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%U http://geodesic.mathdoc.fr/item/SLC_2011-2012_65_a2/
%F SLC_2011-2012_65_a2
Pawel Blasiak; Philippe Flajolet. Combinatorial Models of Creation-Annihilation. Séminaire lotharingien de combinatoire, Tome 65 (2011-2012). http://geodesic.mathdoc.fr/item/SLC_2011-2012_65_a2/