Quantum Energy Inequalities and local covariance II: Categorical formulation

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Publication details

JournalGeneral Relativity and Gravitation
DatePublished - Nov 2007
Issue number11
Number of pages36
Pages (from-to)1855-1890
Original languageEnglish


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.

    Research areas

  • quantum energy inequalities, locally covariant quantum field theory, TIME ORDERED PRODUCTS, FIELD-THEORY, CURVED SPACETIME

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