Novel symmetries in Christ-Lee model
1 S. N. Bose National Centre for Basic Sciences - Salt Lake, Kolkata-700098, West Bengal, India
2 Indian Institute of Science Education and Research - Mohanpur-741246, Kolkata, West Bengal, India
Received: 25 May 2016
Accepted: 4 August 2016
We demonstrate that the gauge-fixed Lagrangian of the Christ-Lee model respects four fermionic symmetries, namely; (anti-)BRST symmetries, (anti-)co-BRST symmetries within the framework of BRST formalism. The appropriate anticommutators amongst the fermionic symmetries lead to a unique bosonic symmetry. It turns out that the algebra obeyed by the symmetry transformations (and their corresponding conserved charges) is reminiscent of the algebra satisfied by the de Rham cohomological operators of differential geometry. We also provide the physical realizations of the cohomological operators in terms of the symmetry properties. Thus, the present model provides a simple model for the Hodge theory.
PACS: 11.15.-q – Gauge field theories / 03.70.+k – Theory of quantized fields / 11.30.-j – Symmetry and conservation laws
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