Marnix Coppens et al 1997 J. Phys. A: Math. Gen. 30 L173 doi:10.1088/0305-4470/30/7/005
On a certain lower bound to the effective potential of 
Marnix Coppens, Henri Verschelde, Sigurd Schelstraete and Mark Vanderkelen
Show affiliationsLETTER TO THE EDITOR
The lower bound to the effective potential of the 
field theory obtained by Caswell and Tarrach is shown to be identical to the saddle-point approximation of the path integral in the auxiliary field representation. The accuracy of this approximation is shown to be low.
- PACS
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11.10.St Bound and unstable states; Bethe-Salpeter equations
- MSC
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81S40 Path integrals (See also 58D30)
81Txx Quantum field theory; related classical field theories (See also 70Sxx)
- Subjects
- Dates
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Issue 7 (7 April 1997)
Received 17 December 1996
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On a certain lower bound to the effective potential of
Marnix Coppens et al 1997 J. Phys. A: Math. Gen. 30 L173
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