Møller operators and Hadamard states for Dirac fields with MIT boundary conditions

  • Nicoló Drago

    Dipartimento di Matematica, Università di Trento, 38050 Povo (TN), Italy
  • Nicolas Ginoux

    Université de Lorraine, CNRS, IECL, F-57000 Metz, France
  • Simone Murro

    Dipartimento di Matematica, Università di Genova, 16146 Genova, Italy
Møller operators and Hadamard states for Dirac fields with MIT boundary conditions cover
Download PDF

This article is published open access.

Abstract

The aim of this paper is to prove the existence of Hadamard states for Dirac fields coupled with MIT boundary conditions on any globally hyperbolic manifold with timelike boundary once a suitable propagation of singularities theorem is assumed. To this avail, we consider particular pairs of weakly-hyperbolic symmetric systems coupled with admissible boundary conditions. We then prove the existence of an isomorphism between the solution spaces to the Cauchy problems associated with these operators – this isomorphism is in fact unitary between the spaces of -initial data. In particular, we show that for Dirac fields with MIT boundary conditions, this isomorphism can be lifted to a -isomorphism between the algebras of Dirac fields and that any Hadamard state can be pulled back along this -isomorphism preserving the singular structure of its two-point distribution.

Cite this article

Nicoló Drago, Nicolas Ginoux, Simone Murro, Møller operators and Hadamard states for Dirac fields with MIT boundary conditions. Doc. Math. 27 (2022), pp. 1693–1737

DOI 10.4171/DM/X16