The European Physical Journal C | |
Quantum-gravity fluctuations and the black-hole temperature | |
Shahar Hod1  | |
[1] The Ruppin Academic Center, 40250, Emeq Hefer, Israel;The Hadassah Institute, 91010, Jerusalem, Israel; | |
关键词: Black Hole; Area Spectrum; Quantum Black Hole; Quantum Entity; Gravitational Resonance; | |
DOI : 10.1140/epjc/s10052-015-3465-y | |
来源: Springer | |
【 摘 要 】
Bekenstein has put forward the idea that, in a quantum theory of gravity, a black hole should have a discrete energy spectrum with concomitant discrete line emission. The quantized black-hole radiation spectrum is expected to be very different from Hawking’s semi-classical prediction of a thermal black-hole radiation spectrum. One naturally wonders: Is it possible to reconcile the discrete quantum spectrum suggested by Bekenstein with the continuous semi-classical spectrum suggested by Hawking? In order to address this fundamental question, in this essay we shall consider the zero-point quantum-gravity fluctuations of the black-hole spacetime. In a quantum theory of gravity, these spacetime fluctuations are closely related to the characteristic gravitational resonances of the corresponding black-hole spacetime. Assuming that the energy of the black-hole radiation stems from these zero-point quantum-gravity fluctuations of the black-hole spacetime, we derive the effective temperature of the quantized black-hole radiation spectrum. Remarkably, it is shown that this characteristic temperature of the discrete (quantized) black-hole radiation agrees with the well-known Hawking temperature of the continuous (semi-classical) black-hole spectrum.
【 授权许可】
CC BY
【 预 览 】
Files | Size | Format | View |
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RO202112167307984ZK.pdf | 398KB | download |