Aniello, Paolo and Lupo, Cosmo and Napolitano, Mario (2006) Exploring Representation Theory of Unitary Groups via Linear Optical Passive Devices. [Pubblicazione in rivista scientifica]


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Tipologia del documento: Pubblicazione in rivista scientifica
Titolo: Exploring Representation Theory of Unitary Groups via Linear Optical Passive Devices
Aniello, Paolo[non definito]
Lupo, Cosmo[non definito]
Napolitano, Mario[non definito]
Data: 2006
Tipo di data: Pubblicazione
Numero identificativo: 10.1007/s11080-006-9023-1
URL ufficiale:
Titolo del periodico: Open System & Information Dynamics
Data: 2006
Volume: 13
Intervallo di pagine: pp. 415-426
Numero identificativo: 10.1007/s11080-006-9023-1
Settori scientifico-disciplinari del MIUR: Area 02 - Scienze fisiche > FIS/02 - Fisica teorica, modelli e metodi matematici
Depositato il: 08 Nov 2008
Ultima modifica: 30 Apr 2014 19:34


In this paper, we investigate some mathematical structures underlying the physics of linear optical passive (LOP) devices. We show, in particular, that with the class of LOP transformations on N optical modes one can associate a unitary representation of U(N) in the N-mode Fock space, representation which can be decomposed into irreducible sub-representations living in the subspaces characterized by a fixed number of photons. These (sub-)representations can be classified using the theory of representations of semi-simple Lie algebras. The remarkable case where N = 3 is studied in detail.

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