Boundaries in the Moyal plane

We study the oscillations of a scalar field on a noncommutative disc implementing the boundary as the limit case of an interaction with an appropriately chosen confining background. The space of quantum fluctuations of the field is finite dimensional and displays the rotational and parity symmetry o...

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Detalles Bibliográficos
Autores principales: Falomir, Horacio Alberto, Franchino Viñas, Sebastián A., González Pisani, Pablo Andrés, Vega, Federico Gaspar
Formato: Articulo Preprint
Lenguaje:Inglés
Publicado: 2013
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Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/99344
https://ri.conicet.gov.ar/11336/23638
http://link.springer.com/article/10.1007%2FJHEP12%282013%29024
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Sumario:We study the oscillations of a scalar field on a noncommutative disc implementing the boundary as the limit case of an interaction with an appropriately chosen confining background. The space of quantum fluctuations of the field is finite dimensional and displays the rotational and parity symmetry of the disc. We perform a numerical evaluation of the (finite) Casimir energy and obtain similar results as for the fuzzy sphere and torus.