Research output: Contribution to journal › Article › peer-review

Journal | General Relativity and Gravitation |
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Date | Published - Nov 2007 |

Issue number | 11 |

Volume | 39 |

Number of pages | 36 |

Pages (from-to) | 1855-1890 |

Original language | English |

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.

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

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