9 research outputs found
Trace anomaly and Casimir effect
The Casimir energy for scalar field of two parallel conductor in two
dimensional domain wall background, with Dirichlet boundary conditions, is
calculated by making use of general properties of renormalized stress tensor.We
show that vacuum expectation values of stress tensor contain two terms which
come from the boundary conditions and the gravitational background. In two
dimensions the minimal coupling reduces to the conformal coupling and stress
tensor can be obtained by the local and non-local contribution of the anomalous
trace. This work shows that there exists a subtle relation between Casimir
effect and trace anomaly in curved space time.Comment: 6pages, Latex. Journal-ref adde
Casimir effect for scalar fields with Robin boundary conditions in Schwarzschild background
The stress tensor of a massless scalar field satisfying Robin boundary
conditions on two one-dimensional wall in two-dimensional Schwarzschild
background is calculated. We show that vacuum expectation value of stress
tensor can be obtained explicitly by Casimir effect, trace anomaly and Hawking
radiation.Comment: 10 pages, no figure
Spherically Symmetric Jordan-Brans-Dicke Quantum Gravity with de Broglie Bohm Pilot Wave Perspective
Analogue Gravity
Analogue models of (and for) gravity have a long and distinguished history dating back to the earliest years of general relativity. In this review article we will discuss the history, aims, results, and future prospects for the various analogue models. We start the discussion
by presenting a particularly simple example of an analogue model, before exploring the rich history and complex tapestry of models discussed in the literature. The last decade in particular
has seen a remarkable and sustained development of analogue gravity ideas, leading to some hundreds of published articles, a workshop, two books, and this review article. Future prospects for the analogue gravity programme also look promising, both on the experimental
front (where technology is rapidly advancing) and on the theoretical front (where variants of analogue models can be used as a springboard for radical attacks on the problem of quantum
gravity)