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hep-ph1998★ 5 cited
Wick's Theorem for non-symmetric normal ordered products and contractions
T. S. Evans, T. W. B. Kibble, D. A. Steer
We consider arbitrary splits of field operators into two parts, and use the corresponding definition of normal ordering introduced by Evans and Steer. In this case the normal order…
hep-ph1997★ 2 cited
On Normal ordering and Canonical transformations in Thermal Field Theory
M. Blasone, T. S. Evans, D. A. Steer +1
We look at a real scalar field in thermal equilibrium in the context of the new normal ordering and field split defined by Evans and Steer. We show that the field split defines a n…