A comment on boundary conditions of bosonic Lagrange multipliers at finite temperature

Thomaz, M.T.
İpekoğlu, Yusuf
The partition function defined in the usual way is a gauge-dependent quantity. However, the ansatz of Bernard and Gross et al leaves it gauge invariant. We use this ansatz for the partition function to show that Lagrange multipliers (non-physical bosonic fields) are not restricted to satisfying any boundary conditions in the path integral at finite temperature. We take a quantum mechanical model to illustrate that boundary conditions satisfied by non-physical fields depend on the choice of 'gauge'.
European Journal of Physics


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Citation Formats
M. T. Thomaz and Y. İpekoğlu, “A comment on boundary conditions of bosonic Lagrange multipliers at finite temperature,” European Journal of Physics, vol. 17, no. 2, pp. 82–84, 1996, Accessed: 00, 2022. [Online]. Available: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=3643118875&origin=inward.