Abstract
We consider the finite field dependent BRST (FFBRST) transformations in the context of Hamiltonian formulation using Batalin-Fradkin-Vilkovisky method. The non-trivial Jacobian of such transformations is calculated in extended phase space. The contribution from Jacobian can be written as exponential of some local functional of fields which can be added to the effective Hamiltonian of the system. Thus, FFBRST in Hamiltonian formulation with extended phase space also connects different effective theories. We establish this result with the help of two explicit examples. We also show that the FFBRST transformations is similar to the canonical transformations in the sector of Lagrange multiplier and its corresponding momenta.
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Acknowledgements
We thankfully acknowledge the financial support from the Department of Science and Technology (DST), Government of India, under the SERC project sanction grant No. SR/S2/HEP-29/2007. One of us (SKR) would also like to thank CSIR, New Delhi for its financial support.
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Rai, S.K., Mandal, B.P. Finite Nilpotent BRST Transformations in Hamiltonian Formulation. Int J Theor Phys 52, 3512–3521 (2013). https://doi.org/10.1007/s10773-013-1654-8
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DOI: https://doi.org/10.1007/s10773-013-1654-8