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Complex Classical Fields: A Framework for Reflection Positivity.

Authors :
Jaffe, Arthur
Jäkel, Christian
Martinez, Roberto
Source :
Communications in Mathematical Physics; Jul2014, Vol. 329 Issue 1, p1-28, 28p
Publication Year :
2014

Abstract

We explore a framework for complex classical fields, appropriate for describing quantum field theories. Our fields are linear transformations on a Hilbert space, so they are more general than random variables for a probability measure. Our method generalizes Osterwalder and Schrader's construction of Euclidean fields. We allow complex-valued classical fields in the case of quantum field theories that describe neutral particles. From an analytic point-of-view, the key to using our method is reflection positivity. We investigate conditions on the Fourier representation of the fields to ensure that reflection positivity holds. We also show how reflection positivity is preserved by various spacetime compactifications of $${\mathbb{R}^{d}}$$ in different coordinate directions. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
00103616
Volume :
329
Issue :
1
Database :
Complementary Index
Journal :
Communications in Mathematical Physics
Publication Type :
Academic Journal
Accession number :
96016744
Full Text :
https://doi.org/10.1007/s00220-014-2040-y