Group-quantization of non-linear sigma models:particle on S2 revisited

We present the quantum mechanics of “partial-trace” non-linear sigma models, on the grounds of a fully symmetry-based procedure. After the general scheme is sketched, the particular example of a particle on the two-sphere is explicitly developed. As a remarkable feature, no explicit constraint treat...

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Bibliographic Details
Authors: Aldaya Valverde, Víctor; López Ruiz, Francisco Felipe; Calixto Molina, Manuel
Format: Article
Publication date:2008
Country:España
Institution:Universidad Politécnica de Cartagena(UPCT)
Repository:Repositorio Digital UPCT
OAI Identifier:oai:repositorio.upct.es:10317/527
Online Access:http://hdl.handle.net/10317/527
Access Level:Open access
Keyword:Grupo de cuantización
Teoría cuantica
Curvatura de la esfera
Matemática Aplicada
Description
Summary:We present the quantum mechanics of “partial-trace” non-linear sigma models, on the grounds of a fully symmetry-based procedure. After the general scheme is sketched, the particular example of a particle on the two-sphere is explicitly developed. As a remarkable feature, no explicit constraint treatment is required nor ordering ambiguities do appear. Moreover, the energy spectrum is recovered without extra terms in the curvature of the sphere.