BRST Symmetry and the Scale Transformation of Ghost Fields in Gauge Theory on NC Spacetime(Particles and Fields)
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概要
- 論文の詳細を見る
BRST symmetry is very important to quantize gauge theory and to construct a covariant canonical formulation. It may also be important for gauge theory on noncommutative (NC) spacetime. The BRST symmetry of U(N) gauge theory on NC spacetime has recently been studied by Soroush, who manipulated the component fields of the gauge and fermion fields. We define the BRST transformations of the representation fields of gauge and fermion fields and show its nilpotency in a transparent way. The scale symmetry of ghost fields is also investigated. BRST charge and FP ghost charge are derived and shown to be the generators of the respective symmetries. As a byproduct, it is shown that Noether's theorem is recovered on NC spacetime by redefining the current.
- 理論物理学刊行会の論文
- 2004-06-25
著者
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Okumura Yoshitaka
Department Of Applied Physics Chubu Institute Of Technology
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Okumura Yoshitaka
Department Of Natural Science Chubu University
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Morita Katsusada
Department Of Physics Kyoto University
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IMAI Kouhei
Department of Natural Science, Chubu University
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Morita Katsusada
Department Of Physics Faculty Of Science Nagoya University
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Morita Katsusada
Department Of Physics Dalhousie University Halifax : Nagoya University
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Imai Kouhei
Department Of Natural Science Chubu University
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MORITA Kenji
Department of Physics, Waseda University
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OKUMURA Yoshitaka
Department of Applied Physics, Chubu Institute of Technology Kasugai
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OKUMURA Yoshitaka
Physics Laboratory, University of Alberta
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MORITA Kazuhiko
Department of Physics, Hokkaido University
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OKUMURA Yoshitaka
Department of Physics, Boston University:The Department of Natural Sciences, Chubu University
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MORITA Katsusada
Department of Physics, Faculty of Science, Nagoya University
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Morita Katsusada
Yukawa Institute for Theoretical Physics, Kyoto University
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