Quantum field theory of photons with orbital angular momentum
Fernández Calvo, Gabriel (Universitat Autònoma de Barcelona. Departament de Física)
Picón Álvarez, Antonio (Universitat Autònoma de Barcelona. Departament de Física)
Bagán Capella, Emili (Universitat Autònoma de Barcelona. Departament de Física)
American Physical Society

Date:	2006
Abstract:	A quantum-field-theory approach is put forward to generalize the concept of classical spatial light beams carrying orbital angular momentum to the single-photon level. This quantization framework is carried out both in the paraxial and nonparaxial regimes. Upon extension to the optical phase space, closed-form expressions are found for a photon Wigner representation describing transformations on the orbital Poincaré sphere of unitarily related families of paraxial spatial modes.
Rights:	Tots els drets reservats.
Language:	Anglès
Document:	Article ; recerca ; Versió publicada
Published in:	Physical review. A, Vol. 73, Issue 1 (January 2006) , p. 013805-1-013805-10, ISSN 1050-2947

DOI: 10.1103/PhysRevA.73.013805

10 p, 167.8 KB

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