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- Centre National de la Recherche ScientifiqueFR13 papers
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4 papers · 1 filter
Hopf Algebras in General and in Combinatorial Physics: a practical introduction
G. H. E. Duchamp, P. Blasiak, A. Horzela +2
This tutorial is intended to give an accessible introduction to Hopf algebras. The mathematical context is that of representation theory, and we also illustrate the structures with…
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…
Recoil Effects in Microwave Ramsey Spectroscopy
Peter Wolf, Christian J. Borde
We present a theory of recoil effects in two zone Ramsey spectroscopy, particularly adapted to microwave frequency standards using laser cooled atoms. We describe the atoms by a st…
Ultracold atoms confined in rf-induced two-dimensional trapping potentials
Yves Colombe, Elena Knyazchyan, Olivier Morizot +3
We present the experimental implementation of a new trap for cold atoms proposed by O. Zobay and B. M. Garraway. It relies on adiabatic potentials for atoms dressed by a rf field i…