The trilinear Hamiltonian: A zero-dimensional model of Hawking radiation from a quantized source

Paul D. Nation, Miles P. Blencowe

Research output: Contribution to journalArticle

20 Citations (Scopus)

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.

Original languageEnglish
Article number095013
JournalNew Journal of Physics
Volume12
DOIs
Publication statusPublished - 2010 Sep 30

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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