Article

Narrow resonances and black-hole-like absorption in a non-black-hole metric

04/2012; DOI:10.1103/PhysRevD.86.044042
Source: arXiv

ABSTRACT A massive body with the Schwarzschild interior metric (perfect fluid of
constant density) develops a pressure singularity at the origin when the radius
of the body $R$ approaches $9r_s/8$, where $r_s$ is the Schwarzschild radius.
We show that a quantum scalar particle scattered in this gravitational field
possesses a dense spectrum of narrow resonances. Their density and lifetimes
tend to infinity in the limit $R\rightarrow 9r_s/8$, and we determine the cross
section of the particle capture into these quasibound states. Therefore, a body
that is not a black hole demonstrates black-hole-like absorption.

0 0
 · 
0 Bookmarks
 · 
27 Views
Data provided are for informational purposes only. Although carefully collected, accuracy cannot be guaranteed. The impact factor represents a rough estimation of the journal's impact factor and does not reflect the actual current impact factor. Publisher conditions are provided by RoMEO. Differing provisions from the publisher's actual policy or licence agreement may be applicable.

Keywords

black hole
 
black-hole-like absorption
 
dense spectrum
 
infinity
 
lifetimes
 
massive body
 
particle capture
 
perfect fluid
 
quantum scalar particle
 
quasibound states
 
Schwarzschild interior metric
 

V. V. Flambaum