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Cosmological perturbation theory and quantum gravity
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نویسنده
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Brunetti Romeo ,Fredenhagen Klaus ,Hack Thomas-Paul ,Pinamonti Nicola ,Rejzner Katarzyna
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منبع
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journal of high energy physics - 2016 - دوره : 2016 - شماره : 8 - صفحه:1 -20
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چکیده
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It is shown how cosmological perturbation theory arises from a fully quantized perturbative theory of quantum gravity. central for the derivation is a non-perturbative concept of gauge-invariant local observables by means of which perturbative invariant expressions of arbitrary order are generated. in particular, in the linearised theory, first order gauge-invariant observables familiar from cosmological perturbation theory are recovered. explicit expressions of second order quantities are presented as well.
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کلیدواژه
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Models of Quantum Gravity ,Classical Theories of Gravity
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آدرس
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Università di Trento, Dipartimento di Matematica, Italy, Universität Hamburg, Germany, Universität Leipzig, Germany, Università di Genova, Dipartimento di Matematica, Italy. INFN, Sezione di Genova, Italy, University of York, Department of Mathematics, UK
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Authors
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