Remarks on time-space noncommutative field theories | Zendy

Luis Álvarez-Gaumé | Zendy; J.L.F. Barbón | Zendy; Roman Zwicky | Zendy

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Remarks on time-space noncommutative field theories

Author(s) -

Luis Álvarez-Gaumé,

J.L.F. Barbón,

Roman Zwicky

Publication year - 2001

Publication title -

journal of high energy physics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.998

H-Index - 261

eISSN - 1126-6708

pISSN - 1029-8479

DOI - 10.1088/1126-6708/2001/05/057

Subject(s) - noncommutative geometry , theoretical physics , tachyonic field , causality (physics) , string field theory , unitarity , field (mathematics) , relationship between string theory and quantum field theory , quantum field theory , interpretation (philosophy) , commutative property , string (physics) , string phenomenology , spacetime , physics , noncommutative quantum field theory , tachyon , non critical string theory , string theory , quantum gravity , quantum mechanics , mathematics , quantum , mathematical physics , pure mathematics , philosophy , gauge theory , higgs mechanism , gauge boson , linguistics

We propose a physical interpretation of the perturbative breakdown ofunitarity in time-like noncommutative field theories in terms of production oftachyonic particles. These particles may be viewed as a remnant of a continuousspectrum of undecoupled closed-string modes. In this way, we give a unifiedview of the string-theoretical and the field-theoretical no-go argumentsagainst time-like noncommutative theories. We also perform a quantitative studyof various locality and causality properties of noncommutative field theoriesat the quantum level.Comment: 19 pages, LaTe

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