Gravitational Cheshire effect: Nonminimally coupled scalar fields may not curve spacetime

Details Gravitational Cheshire effect: Nonminimally coupled scalar fields may not curve spacetime Gravitational Cheshire effect: Nonminimally coupled scalar fields may not curve spacetime

2005-05-10

arxiv.org/abs/hep-th/0505086v2

Phys.Rev. D71 (2005) 104037

Physics

High Energy Physics

High Energy Physics - Theory

8 pages, 1 figure, CECS style; small changes to match published version, title changed by journal

Scientific paper

10.1103/PhysRevD.71.104037

It is shown that flat spacetime can be dressed with a real scalar field that satisfies the nonlinear Klein-Gordon equation without curving spacetime. Surprisingly, this possibility arises from the nonminimal coupling of the scalar field with the curvature, since a footprint of the coupling remains in the energy-momentum tensor even when gravity is switched off. Requiring the existence of solutions with vanishing energy-momentum tensor fixes the self-interaction potential as a local function of the scalar field depending on two coupling constants. The solutions describe shock waves and, in the Euclidean continuation, instanton configurations in any dimension. As a consequence of this effect, the tachyonic solutions of the free massive Klein-Gordon equation become part of the vacuum.

Affiliated with

Also associated with

No associations

Rating

Gravitational Cheshire effect: Nonminimally coupled scalar fields may not curve spacetime does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Gravitational Cheshire effect: Nonminimally coupled scalar fields may not curve spacetime, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Gravitational Cheshire effect: Nonminimally coupled scalar fields may not curve spacetime will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-73449