TY - JOUR
T1 - Quantum radiation from quantum gravitational collapse
AU - Vachaspati, Tanmay
AU - Stojkovic, Dejan
N1 - Funding Information:
This work was supported by the US Department of Energy and NASA at Case Western Reserve University. Work of D.S. was also supported by HEPCOS group, SUNY at Buffalo.
PY - 2008/5/15
Y1 - 2008/5/15
N2 - We study quantum radiation emitted during the collapse of a quantized, gravitating, spherical domain wall. The amount of radiation emitted during collapse now depends on the wavefunction of the collapsing wall and the background spacetime. If the wavefunction is initially in the form of a sharp wavepacket, the expectation value of the particle occupation number is determined as a function of time and frequency. The results are in good agreement with our earlier semiclassical analysis and show that the quantum radiation is non-thermal and evaporation accompanies gravitational collapse.
AB - We study quantum radiation emitted during the collapse of a quantized, gravitating, spherical domain wall. The amount of radiation emitted during collapse now depends on the wavefunction of the collapsing wall and the background spacetime. If the wavefunction is initially in the form of a sharp wavepacket, the expectation value of the particle occupation number is determined as a function of time and frequency. The results are in good agreement with our earlier semiclassical analysis and show that the quantum radiation is non-thermal and evaporation accompanies gravitational collapse.
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U2 - 10.1016/j.physletb.2008.04.004
DO - 10.1016/j.physletb.2008.04.004
M3 - Article
AN - SCOPUS:42749096604
SN - 0370-2693
VL - 663
SP - 107
EP - 110
JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
IS - 1-2
ER -