Quantum energy inequalities and local covariance II: Categorical formulation

Details Quantum energy inequalities and local covariance II: Categorical formulation Quantum energy inequalities and local covariance II: Categorical formulation

2006-11-22

arxiv.org/abs/math-ph/0611058v2

Gen.Rel.Grav.39:1855-1890,2007

Physics

Mathematical Physics

27 pages, LaTeX. Further discussion added. Version to appear in General Relativity and Gravitation

Scientific paper

10.1007/s10714-007-0494-3

We formulate Quantum Energy Inequalities (QEIs) in the framework of locally covariant quantum field theory developed by Brunetti, Fredenhagen and Verch, which is based on notions taken from category theory. This leads to a new viewpoint on the QEIs, and also to the identification of a new structural property of locally covariant quantum field theory, which we call Local Physical Equivalence. Covariant formulations of the numerical range and spectrum of locally covariant fields are given and investigated, and a new algebra of fields is identified, in which fields are treated independently of their realisation on particular spacetimes and manifestly covariant versions of the functional calculus may be formulated.

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