Document Type
Article
Publication Date
9-30-2010
Publication Title
New Journal of Physics
Department
Department of Physics and Astronomy
Abstract
We investigate a quantum parametric amplifier with dynamical pump mode, viewed as a zero-dimensional model of Hawking radiation from an evaporating black hole. We derive the conditions under which the spectrum of particles generated from vacuum fluctuations deviates from the thermal spectrum predicted for the conventional parametric amplifier. We find that significant deviations arise when the pump mode (black hole) has emitted nearly half of its initial energy into the signal (Hawking radiation) and idler (in-falling particle) modes. As a model of black hole dynamics, this finding lends support to the view that late-time Hawking radiation contains information about the quantum state of the black hole and is entangled with the black hole's quantum gravitational degrees of freedom.
DOI
10.1088/1367-2630/12/9/095013
Original Citation
Paul D Nation and Miles P Blencowe 2010 New J. Phys. 12 095013
Dartmouth Digital Commons Citation
Nation, Paul D. and Blencowe, Miles P., "The Trilinear Hamiltonian: A Zero-Dimensional Model of Hawking Radiation from a Quantized Source" (2010). Dartmouth Scholarship. 1896.
https://digitalcommons.dartmouth.edu/facoa/1896
