Preprint 54/1998

Non-existence of black hole solutions for a spherically symmetric, static Einstein-Dirac-Maxwell system

Felix Finster, Joel Smoller, and Shing-Tung Yau

Contact the author: Please use for correspondence this email.
Submission date: 16. Nov. 1998
Pages: 15
published in: Communications in mathematical physics, 205 (1999) 2, p. 249-262 
DOI number (of the published article): 10.1007/s002200050675
Download full preprint: PDF (338 kB), PS ziped (154 kB)

We consider for j=1/2, 3/2,... a spherically symmetric, static system of (2j+1) Dirac particles, each having total angular momentum j. The Dirac particles interact via a classical gravitational and electromagnetic field.

The Einstein-Dirac-Maxwell equations for this system are derived. It is shown that, under weak regularity conditions on the form of the horizon, the only black hole solutions of the EDM equations are the Reissner-Nordstrom solutions. In other words, the spinors must vanish identically. Applied to the gravitational collapse of a "cloud" of spin-1/2-particles to a black hole, our result indicates that the Dirac particles must eventually disappear inside the event horizon.

24.11.2021, 02:10