Fermionic $θ$ Vacua and Long-Necked Remnants

Details Fermionic $θ$ Vacua and Long-Necked Remnants Fermionic $θ$ Vacua and Long-Necked Remnants

1993-12-03

arxiv.org/abs/hep-th/9312021v2

Phys.Rev.D49:5295-5301,1994

Physics

High Energy Physics

High Energy Physics - Theory

LaTeX, 17 pages, one uuencoded figure, CALT-68-1904, {Some editorial changes as suggested by an anonymous referee, one figure

Scientific paper

10.1103/PhysRevD.49.5295

We study a vacuum polarization effect in the background of certain dilatonic extremal black hole, known as the cornucopion. Whenever the charged fermions are of any finite mass, the gravitational backreaction to a generic value of a $CP$ nonconserving vacuum angle $\theta$ is shown to be important owing to a vacuum energy density which does not vanish deep inside the cornucopion. When this energy density is positive, this effect creates an extremal horizon at finite physical distance, closing off the infinite neck. We study the geometry near this horizon in some detail and find different physical interpretations for small and large fermion mass. Also, we argue that the conclusion is qualitatively correct despite the strong coupling.

Affiliated with

Also associated with

No associations

Rating

Fermionic $θ$ Vacua and Long-Necked Remnants 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 Fermionic $θ$ Vacua and Long-Necked Remnants, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fermionic $θ$ Vacua and Long-Necked Remnants will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-467770