On the gravitational coupling of Hadamard states
| dc.creator | Salehi, Hadi | |
| dc.creator | Moyassari, Parvin | |
| dc.creator | Rashidi, Reza | |
| dc.date | 2007-05-06 | |
| dc.date.accessioned | 2026-07-07T07:59:42Z | |
| dc.date.available | 2026-07-07T07:59:42Z | |
| dc.description | We study the constraints imposed by the Hadamard condition on the two-point function of local states of a scalar quantum field conformally coupled to a gravitational background. We propose a method to assign a stress tensor to the state-dependent part of the two point function which arises as a conserved tensor with an anomalous trace. To characterize the local Hadamard states of physical interest we apply a super-selection rule relating this quantum stress tensor to the matter stress tensor of a conformal invariant gravitational model subject to a conformal symmetry breaking term. This implies that the determination of a Hadamard state may be considered as an integral part of its gravitational coupling via the back-reaction effect. | |
| dc.description | 10 pages | |
| dc.identifier | https://arxiv.org/abs/0705.0787 | |
| dc.identifier | http://arxiv.org/abs/0705.0787 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/128470 | |
| dc.subject | General Relativity and Quantum Cosmology | |
| dc.title | On the gravitational coupling of Hadamard states | |
| dc.type | text |