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Central extensions and quantum physics
dc.contributor.author | Aldaya Valverde, Víctor | |
dc.contributor.author | Calixto Molina, Manuel | |
dc.date.accessioned | 2008-10-29T12:57:54Z | |
dc.date.available | 2008-10-29T12:57:54Z | |
dc.date.issued | 2008-10-29T12:57:54Z | |
dc.description.abstract | The unitary implementation of a symmetry group G of a classical system in the corresponding quantum theory entails unavoidable deformations ˜G of G, namely, central extensions by the typical phase invariance group U(1). The appearance of central charges in the corresponding Lie-algebra quantum commutators, as a consequence of non-trivial responses of the phase of the wave function under symmetry transformations, lead to a quantum generation of extra degrees of freedom with regard to the classical counterpart. In particular, symmetries of the Hall effect, Yang-Mills and conformally invariant classical field theories are affected when passing to the quantum realm. | es |
dc.description.sponsorship | M. Calixto thanks the University of Granada for a Post-doctoral grant and the Department of Physics of Swansea for its hospitality. | es |
dc.format | application/pdf | |
dc.language.iso | eng | es |
dc.rights | Atribución-NoComercial-SinDerivadas 3.0 España | * |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/3.0/es/ | * |
dc.title | Central extensions and quantum physics | es |
dc.type | info:eu-repo/semantics/article | es |
dc.subject.other | Matemática Aplicada | es |
dc.subject | Teoría de campos cuánticos | es |
dc.subject | Teorías Yang-Mills | es |
dc.subject | Teoría cuántica | es |
dc.subject | Simetría de grupo G | es |
dc.identifier.uri | http://hdl.handle.net/10317/528 | |
dc.identifier.uri | arXiv:hep-th/9903141v2 | |
dc.rights.accessRights | info:eu-repo/semantics/openAccess |
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