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Hadamard states from light-like hype...

Dappiaggi, Claudio.

Hadamard states from light-like hypersurfaces

Record Type:	Electronic resources : Monograph/item
Title/Author:	Hadamard states from light-like hypersurfacesby Claudio Dappiaggi, Valter Moretti, Nicola Pinamonti.
Author:	Dappiaggi, Claudio.
other author:	Moretti, Valter.
Published:	Cham :Springer International Publishing :2017.
Description:	viii, 106 p. :ill., digital ;24 cm.
Contained By:	Springer eBooks
Subject:	Quantum field theory.
Online resource:	http://dx.doi.org/10.1007/978-3-319-64343-4
ISBN:	9783319643434$q(electronic bk.)

Hadamard states from light-like hypersurfaces
Dappiaggi, Claudio.

Hadamard states from light-like hypersurfaces[electronic resource] /by Claudio Dappiaggi, Valter Moretti, Nicola Pinamonti. - Cham :Springer International Publishing :2017. - viii, 106 p. :ill., digital ;24 cm. - SpringerBriefs in mathematical physics,v.252197-1757 ;. - SpringerBriefs in mathematical physics ;v.1..

Introduction -- Algebraic approach to quantum field theory on curved spacetimes -- States with good physical properties -- Bulk to boundary correspondence and construction of Hadamard states -- General geometric setup -- Globally hyperbolic spacetimes -- Spacetimes with distinguished light-like 3-surfaces -- Quantum Fields in spacetimes with null surfaces -- Algebra of observables in globally hyperbolic spacetimes -- Observables on null infinity -- The bulk-to-boundary algebra injection -- Boundary-Induced Hadamard States -- Algebraic States and the Hadamard Condition -- The Bulk-To-Boundary Correspondence for States -- Some further applications -- Wick Polynomials and Extended Observables Algebras -- Extended algebra of fields -- Extension of the algebra on the boundary -- Interplay Between Algebras and States on D and on C.

This book provides a rather self-contained survey of the construction of Hadamard states for scalar field theories in a large class of notable spacetimes, possessing a (conformal) light-like boundary. The first two sections focus on explaining a few introductory aspects of this topic and on providing the relevant geometric background material. The notions of asymptotically flat spacetimes and of expanding universes with a cosmological horizon are analysed in detail, devoting special attention to the characterization of asymptotic symmetries. In the central part of the book, the quantization of a real scalar field theory on such class of backgrounds is discussed within the framework of algebraic quantum field theory. Subsequently it is explained how it is possible to encode the information of the observables of the theory in a second, ancillary counterpart, which is built directly on the conformal (null) boundary. This procedure, dubbed bulk-to-boundary correspondence, has the net advantage of allowing the identification of a distinguished state for the theory on the boundary, which admits a counterpart in the bulk spacetime which is automatically of Hadamard form. In the last part of the book, some applications of these states are discussed, in particular the construction of the algebra of Wick polynomials. This book is aimed mainly, but not exclusively, at a readership with interest in the mathematical formulation of quantum field theory on curved backgrounds.

ISBN: 9783319643434$q(electronic bk.)

Standard No.: 10.1007/978-3-319-64343-4doiSubjects--Topical Terms:

203819
Quantum field theory.

LC Class. No.: QC174.45 / .D37 2017

Dewey Class. No.: 530.143

Hadamard states from light-like hypersurfaces
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505 0 $a Introduction -- Algebraic approach to quantum field theory on curved spacetimes -- States with good physical properties -- Bulk to boundary correspondence and construction of Hadamard states -- General geometric setup -- Globally hyperbolic spacetimes -- Spacetimes with distinguished light-like 3-surfaces -- Quantum Fields in spacetimes with null surfaces -- Algebra of observables in globally hyperbolic spacetimes -- Observables on null infinity -- The bulk-to-boundary algebra injection -- Boundary-Induced Hadamard States -- Algebraic States and the Hadamard Condition -- The Bulk-To-Boundary Correspondence for States -- Some further applications -- Wick Polynomials and Extended Observables Algebras -- Extended algebra of fields -- Extension of the algebra on the boundary -- Interplay Between Algebras and States on D and on C.
520 $a This book provides a rather self-contained survey of the construction of Hadamard states for scalar field theories in a large class of notable spacetimes, possessing a (conformal) light-like boundary. The first two sections focus on explaining a few introductory aspects of this topic and on providing the relevant geometric background material. The notions of asymptotically flat spacetimes and of expanding universes with a cosmological horizon are analysed in detail, devoting special attention to the characterization of asymptotic symmetries. In the central part of the book, the quantization of a real scalar field theory on such class of backgrounds is discussed within the framework of algebraic quantum field theory. Subsequently it is explained how it is possible to encode the information of the observables of the theory in a second, ancillary counterpart, which is built directly on the conformal (null) boundary. This procedure, dubbed bulk-to-boundary correspondence, has the net advantage of allowing the identification of a distinguished state for the theory on the boundary, which admits a counterpart in the bulk spacetime which is automatically of Hadamard form. In the last part of the book, some applications of these states are discussed, in particular the construction of the algebra of Wick polynomials. This book is aimed mainly, but not exclusively, at a readership with interest in the mathematical formulation of quantum field theory on curved backgrounds.
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