Coupling the Sorkin-Johnston state to gravity

We consider the dynamics of the Sorkin-Johnston state for a massless scalar field in two dimensions. We conduct a study of the renormalized stress-tensor by a subtraction procedure, and compare the results with those of the conformal vacuum, with an important contribution from correction term. We fi...

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Bibliographic Details
Published in:Physical review. D, Particles, fields, gravitation, and cosmology Particles, fields, gravitation, and cosmology, 2014-10, Vol.90 (8), Article 084036
Main Authors: Avilán, Nicolás, Reyes-Lega, Andrés F., Carneiro da Cunha, Bruno
Format: Article
Language:English
Subjects:
Anomalies
Cosmology
Dynamics
Gravitation
Joining
Scalars
Subtraction
Two dimensional
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Summary:We consider the dynamics of the Sorkin-Johnston state for a massless scalar field in two dimensions. We conduct a study of the renormalized stress-tensor by a subtraction procedure, and compare the results with those of the conformal vacuum, with an important contribution from correction term. We find a large trace anomaly and compute backreaction effects to two dimensional (Liouville) gravity. We also find a natural interpretation for the mirror behavior of the Sorkin-Johnston state described in previous works.
ISSN:1550-7998
1550-2368
DOI:10.1103/PhysRevD.90.084036