Reflection positivity in general

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Reflection positivity in general

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In the Euclidean QFT obtained by "Wick-rotating" a unitary QFT, the correlation functions satisfy a property called reflection positivity, see e.g. this Wikipedia article for the case of a scalar field.

What's the correct formulation if you have chiral fermions and/or terms like the QCD theta angle? Could someone give the references?

This post imported from StackExchange Physics at 2014-04-05 04:30 (UCT), posted by SE-user Yuji

asked Aug 18, 2012 in Theoretical Physics by Yuji (1,395 points) [ no revision ]

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